Chicken Tetrazzini Casserole is such a classic and comforting casserole. This is creamy, cheesy and hidden with fresh mushrooms and peas. Topped with parmesan cheese and crispy breadcrumbs this is the perfect casserole!
Preheat oven to 350 degrees. Spray a 9x13 inch casserole dish with cooking spray. Set aside.
In a large pot cook the pasta according to directions and cook until al dente. Drain and place in the prepared baking dish.
In a medium sized saucepan add the olive oil, mushrooms, garlic, and peas. Cook until tender. Whisk in the flour and cook for an additional minute.
To the saucepan add the cream of chicken soup, heavy whipping cream, chicken broth, and salt and pepper to taste. Let simmer until it starts to thicken. Add in the chicken and mix to incorporate.
Add the sauce to the spaghetti and toss until coated. Spread in your 9x13 inch pan.
In a bowl mix together the parmesan cheese, bread crumbs, and butter. Spread the mixture on top of the casserole.
Bake for 30-40 minutes until heated through and the bread crumbs are brown on top.
Notes
Alyssa Also Recommends: Want to make this even easier? Here are a few products that I LOVE:•Nordic Wave 13x9 Baking Dish •Calphalon Cookware Set •Utopia Kitchen Cooking Knives