Garlic Parmesan Chicken & Steak Bake with Cheesy Loaded Mashed Potatoes Recipe
If you’re on the hunt for the ultimate comfort food feast, look no further than this Garlic Parmesan Chicken & Steak Bake with Cheesy Loaded Mashed Potatoes. Juicy bites of chicken and steak are roasted together in a blanket of garlicky parmesan goodness, then served alongside a mountain of creamy, cheesy, bacon-studded mashed potatoes. Every forkful is hearty, flavorful, and absolutely irresistible. Whether it’s a special weekend meal or a cozy family dinner, this dish is guaranteed to steal the show.

Ingredients You’ll Need
The secret to a mouthwatering Garlic Parmesan Chicken & Steak Bake with Cheesy Loaded Mashed Potatoes is using fresh, simple ingredients that really shine. Each one plays a key role, from the richness of the meats to the creaminess of the potatoes and the punch of garlic and cheese.
- Chicken Breasts: Cut into chunks for even cooking and juicy bites in every forkful.
- Sirloin Steak: Tender and flavorful, steak adds a hearty, luxurious touch.
- Olive Oil: Helps the seasonings stick and keeps everything moist as it bakes.
- Garlic: Fresh minced garlic infuses the entire dish with bold, aromatic flavor.
- Salt & Black Pepper: Essential for bringing out the natural flavors of the meats and potatoes.
- Italian Seasoning: Adds an herby depth that pairs perfectly with the parmesan.
- Smoked Paprika: Lends a subtle smokiness and beautiful color to the bake.
- Parmesan Cheese: The star cheese—nutty, salty, and perfect for crisping on top.
- Fresh Parsley: A sprinkle of green for freshness and color right before serving.
- Shredded Mozzarella (optional): For an extra gooey, cheesy finish on top.
- Yukon Gold Potatoes: Their naturally buttery texture makes for the silkiest mashed potatoes.
- Sour Cream: Adds tang and creaminess, making the potatoes extra luscious.
- Milk: Warming the milk before adding ensures your mash stays fluffy and smooth.
- Unsalted Butter: Rich and classic, butter makes everything better—especially mashed potatoes.
- Shredded Cheddar Cheese: Melts into the potatoes for a cheesy, decadent bite.
- Cooked Bacon: Crispy, smoky bacon crumbles add crunch and bold flavor.
- Green Onions: Sliced for a pop of color and subtle bite throughout the mash.
How to Make Garlic Parmesan Chicken & Steak Bake with Cheesy Loaded Mashed Potatoes
Step 1: Marinate the Chicken and Steak
Start by tossing your chicken and steak chunks in a big bowl with olive oil, minced garlic, salt, pepper, Italian seasoning, smoked paprika, and a generous handful of grated parmesan. Give everything a good mix so each piece is lovingly coated. This quick marinade ensures every bite of meat is packed with flavor, even before it hits the oven.
Step 2: Arrange and Bake
Spread the marinated chicken and steak out on a large baking dish or sheet pan. Make sure it’s all in a single layer so everything roasts evenly and gets those delicious golden edges. Slide it into a preheated 400°F oven and bake for 20–25 minutes. If you like things extra cheesy, sprinkle mozzarella over the top during the last five minutes and let it melt into a bubbly, golden layer.
Step 3: Prepare the Cheesy Loaded Mashed Potatoes
While the meat is baking, get your potatoes going. Boil peeled and cubed Yukon gold potatoes in cold water until fork tender, about 15–20 minutes. Drain, then return them to the pot and mash with butter, sour cream, and warm milk until irresistibly smooth. Fold in shredded cheddar, crispy bacon, and green onions for that ultimate loaded-mash experience. Season with salt and pepper to taste.
Step 4: Bring It All Together
Once the chicken and steak are cooked through and your kitchen smells like pure heaven, pull the pan from the oven. Don’t forget to garnish with fresh parsley for a fresh, vibrant finish! Spoon the Garlic Parmesan Chicken & Steak Bake with Cheesy Loaded Mashed Potatoes onto plates, making sure to drizzle any delicious pan juices over the mash.
How to Serve Garlic Parmesan Chicken & Steak Bake with Cheesy Loaded Mashed Potatoes

Garnishes
Finish your plates with an extra sprinkle of chopped parsley and a dusting of parmesan for color and a little extra flavor. A few extra green onion slices over the mashed potatoes add a bright, fresh crunch, and if you’re feeling fancy, a twist of cracked black pepper right before serving makes everything pop.
Side Dishes
This dish is a meal on its own, but you can round it out with a crisp green salad tossed with a tangy vinaigrette or some roasted broccoli for a little green on the plate. Warm dinner rolls or garlic bread are also a great choice to help scoop up every last bit of those cheesy mashed potatoes and savory pan juices.
Creative Ways to Present
Serve the Garlic Parmesan Chicken & Steak Bake with Cheesy Loaded Mashed Potatoes family-style, with the meat piled high on top of a bed of mash in a big serving bowl. Or, for a fun twist, layer the potatoes in individual ramekins, top with the chicken and steak, and finish with a little mozzarella under the broiler for a bubbly, golden topping. It’s a showstopper either way!
Make Ahead and Storage
Storing Leftovers
Place any leftovers in airtight containers and refrigerate for up to 3 days. Keep the chicken, steak, and mashed potatoes separate if you want to maintain the best texture, but it’s fine to store them together if you’re planning to reheat as a mixed dish.
Freezing
Both the bake and the potatoes freeze well! Portion them into freezer-safe containers. When you’re ready to enjoy, just thaw in the fridge overnight—this helps keep the potatoes creamy and the meat juicy. For best results, freeze without the parsley garnish and add fresh when serving.
Reheating
To reheat, cover the bake and mashed potatoes with foil and warm in a 350°F oven until hot, about 20–25 minutes. You can also microwave smaller portions, though the oven preserves the textures best. Add a splash of milk to the mashed potatoes before reheating to bring back their creamy magic.
FAQs
Can I use a different cut of steak or chicken?
Absolutely! While sirloin and chicken breast work beautifully, you can swap in chicken thighs or another tender steak cut like ribeye or strip steak. Just keep the chunks uniform for even cooking.
Is there a way to make this dish lighter?
You can lighten things up by using less cheese or swapping sour cream in the potatoes for plain Greek yogurt. Try turkey bacon to cut back on fat while keeping the flavor.
Can I prep this dish in advance?
Yes! You can marinate the meats a day ahead and even prep the mashed potatoes. Store everything separately in the fridge, then bake and assemble just before serving for the freshest taste.
What can I use if I don’t have Yukon gold potatoes?
Russet potatoes are a great substitute and will yield fluffy, creamy mashed potatoes as well. Red potatoes can also work for a slightly different texture and flavor.
How do I know when the chicken and steak are cooked?
The chicken should reach an internal temperature of 165°F and the steak can be cooked to your preferred doneness. Cutting into a piece is the easiest way to check—look for juicy, cooked-through meat and clear juices.
Final Thoughts
If you love a hearty, flavor-packed meal that brings everyone to the table, you simply have to try this Garlic Parmesan Chicken & Steak Bake with Cheesy Loaded Mashed Potatoes. It’s a dish that’s sure to become a new favorite, perfect for treating your loved ones or impressing guests. Give it a go—you’ll be dreaming about that cheesy, garlicky goodness long after the last bite!
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Garlic Parmesan Chicken & Steak Bake with Cheesy Loaded Mashed Potatoes Recipe
- Total Time: 50 minutes
- Yield: 4–6 servings 1x
- Diet: Non-Vegetarian
Description
This Garlic Parmesan Chicken & Steak Bake with Cheesy Loaded Mashed Potatoes is a hearty and comforting dish perfect for weekend dinners or feeding a crowd. Tender chunks of chicken and sirloin steak are tossed in a flavorful garlic Parmesan seasoning, baked to perfection, and optionally topped with melted mozzarella. Served alongside creamy Yukon gold mashed potatoes loaded with cheddar, bacon, and green onions, this meal is rich, satisfying, and packed with savory goodness.
Ingredients
For the Chicken & Steak Bake:
- 1 lb boneless, skinless chicken breasts, cut into chunks
- 1 lb sirloin steak, cut into chunks
- 2 tablespoons olive oil
- 4 cloves garlic, minced
- ½ teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon Italian seasoning
- ½ teaspoon smoked paprika
- ½ cup grated Parmesan cheese
- 1 tablespoon chopped fresh parsley (for garnish)
- 1 cup shredded mozzarella (optional for topping)
For the Cheesy Loaded Mashed Potatoes:
- 2 lbs Yukon gold potatoes, peeled and cubed
- ½ cup sour cream
- ½ cup milk, warmed
- 4 tablespoons unsalted butter
- 1 cup shredded cheddar cheese
- 4 strips cooked bacon, crumbled
- 2 green onions, sliced
- Salt and pepper to taste
Instructions
- Prepare the meat mixture: Preheat your oven to 400°F (200°C). In a large bowl, combine the chicken and steak chunks with olive oil, minced garlic, salt, black pepper, Italian seasoning, smoked paprika, and grated Parmesan cheese. Toss everything thoroughly to coat the meat evenly with the seasoning and cheese.
- Bake the meat: Transfer the coated chicken and steak pieces to a large baking dish or a rimmed sheet pan, spreading them out in a single layer. Bake in the preheated oven for 20–25 minutes until the chicken is fully cooked and the steak reaches your preferred doneness. For a cheesy finish, sprinkle shredded mozzarella on top during the last 5 minutes of baking. Remove from the oven and garnish with chopped fresh parsley.
- Cook the potatoes: While the meat bakes, place the peeled and cubed Yukon gold potatoes in a large pot. Cover with cold water and bring to a boil over high heat. Boil the potatoes for 15–20 minutes or until they are fork-tender and easily mashable. Drain well and return the potatoes back to the pot.
- Mash and load the potatoes: Mash the hot potatoes with sour cream, warmed milk, and unsalted butter until smooth and creamy. Stir in the shredded cheddar cheese, crumbled cooked bacon, and sliced green onions. Season the mixture with salt and pepper according to your taste preferences.
- Serve: Plate the garlic Parmesan chicken and steak bake alongside or over a generous serving of the cheesy loaded mashed potatoes. Spoon some of the delicious pan juices over the meat for extra flavor and enjoy your comforting meal.
Notes
- You can marinate the chicken and steak ahead of time for extra depth of flavor; letting them sit in the seasoning mixture for at least 30 minutes or overnight works well.
- Swap cheddar cheese with Monterey Jack or pepper jack for a different flavor profile in the mashed potatoes.
- Add chopped jalapeños into the mashed potatoes if you prefer a spicy kick.
- This recipe is great for a crowd—adjust quantities accordingly to feed more people.
- Leftovers can be refrigerated for up to 3 days and reheated gently on the stove or in the oven.
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Category: Main Course
- Method: Baking, Boiling
- Cuisine: American
Nutrition
- Serving Size: 1 plate
- Calories: 720
- Sugar: 3g
- Sodium: 580mg
- Fat: 42g
- Saturated Fat: 20g
- Unsaturated Fat: 20g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 3g
- Protein: 48g
- Cholesterol: 175mg