Heat a large pot of water over medium heat. Once boiling, add salt and return to boiling. Add pasta and cook for 5 minutes.
12 ounces rigatoni pasta
In a large, oven-proof skillet, melt butter over medium heat. Add onion and cook for 2-4 minutes, stirring occasionally.
2 Tablespoons butter, 1 small onion
Stir in mushrooms. Season with salt and pepper. Cook for an additional 5 minutes. Stir in garlic and cook for 1-2 minutes.
3 cups mushrooms, 2 cloves garlic
Stir in Marsala wine, chicken broth, and both condensed soups. Bring to a boil and reduce heat to low. Stir pasta and chicken into skillet.
2/3 cup Marsala wine, 2/3 cup chicken broth, 10 ounce can condensed cream of mushroom soup, 10 ounce can condensed cream of chicken soup, 1 cup cooked chicken breast
Meanwhile, preheat oven to 375 degrees.
In a small bowl, mix together melted butter and panko crumbs. Sprinkle on top of pasta.
2 Tablespoons butter, 1/4 cup panko crumbs
Transfer skillet to oven and cook for 10-15 minutes or until topping is lightly browned and casserole is heated through.