Put on your coziest outfit and grab a big ole bowl because Stay-At-Home Chicken Alfredo Casserole says we’re staying in tonight! And believe us, your tastebuds will be jumping for joy knowing that they get to indulge in some tender pasta, succulent chicken, and a creamy homemade Alfredo sauce right from the comfort of your big comfy couch. It’s plain and simple, but in the best way. It’s cheesy and served with a bright and juicy tomato combo that will make you want to stay home for dinner every night. So just stay where you are and enjoy the comfiest night-in with Stay-At-Home Chicken Alfredo Casserole!

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  • 4 (4-ounce) chicken breasts, boneless and skinless
  • 1/2 cup Italian salad dressing
  • 2 medium Roma tomatoes, cut into small pieces with seeds discarded
  • 6 fresh basil leaves, chiffonade
  • 1 teaspoon olive oil
  • salt, to taste
  • pepper, to taste
  • 1 tablespoon canola oil
  • 12 ounces penne pasta, uncooked
  • 3/4 cup butter
  • 6 cloves garlic, peeled and minced
  • 3 cups heavy cream
  • 1 1/2 cups parmesan cheese, grated
  • 1 cup Swiss cheese or Monterey Jack cheese, shredded


Step 1 –Preheat the oven to 375 degrees F.

Step 2 –Lightly grease a 9×13-inch baking dish.

Step 3 –In a small bowl, combine the chicken and the salad dressing.

Step 4 –Marinate the chicken in the refrigerator, about 30 minutes.

Step 5 –In a bowl, combine the tomatoes, the basil, and the olive oil, season with the salt and the pepper to taste, and toss to combine.

Step 6 –Brush a wide heavy-bottomed pan with the canola oil and heat over medium heat.

Also Read:  Lazy-Day Lasagna

Step 7 –Add the chicken breasts, in a single layer, to the oil and pan-grill them until they reach an internal temperature of 165 degrees F, about 4-5 minutes per side.

Step 8 –Slice the chicken breasts and keep them warm.

Step 9 –In a pot of salted boiling water, cook the pasta until 1 minute shy of al dente. Drain well.

Step 10 –In a medium saucepan over medium heat, add the butter and cook until it melts.

Step 11 –Add the garlic to the butter and cook, while stirring, until it is aromatic.

Step 12 –Add the heavy cream to the garlic butter and simmer until it is heated, about 3-5 minutes.

Step 13 –Add the parmesan cheese to the sauce mixture, whisking vigorously, until it thickens.

Step 14 –Season the sauce with the salt and the pepper.

Step 15 –In a bowl, add the cooked pasta and the sauce and toss to combine.

Step 16 –Transfer the pasta mixture to the prepared baking dish, top with the cooked chicken, and sprinkle with the Swiss cheese.

Step 17 –Cover the dish with foil and bake until the casserole is heated through and the cheese has melted, about 20-25 minutes.

Step 18 –Serve the casserole with the tomato mixture.