This chicken tetrazzini recipe is easy (especially if you're precooking your chicken and freezing) and it tastes great.
Thanks to my friend Cathy for the recipe! I precooked chicken in the crock pot the day before I made this and just kept that in the fridge.
Saute onion and bell pepper in 2 Tablespoons of butter in a saucepan over medium/high heat. Add garlic after onion is turning translucent.
Add chicken, cooked spaghetti, and soup.
Combine 1/4 cup melted butter and flour in a saucepan over medium heat. Slowly add milk and stir with a wire whisk until mixture thickens.
Stir in grated cheese.
Pour thickened sauce over chicken mixture and stir to combine.
Delicious! Serve with a side salad and garlic toast!