Toss frozen boneless skinless chicken breasts in the glass casserole dish and 4 simple additions to get a meal so delicious your family will be begging for more.

is the best guide. Test the thickest breast in the center of the dish and make sure it reaches 165°F. 

Thin the sauce if needed: If you prefer more sauce for spooning over rice or potatoes, add an extra 2 to 4 tablespoons of water before baking.

Season at the table: Onion soup mix is usually quite flavorful, so taste the finished sauce before adding extra salt. A little black pepper or chopped parsley at the end can brighten the dish nicely.