Prep Time 15 minutes mins
Cook Time 30 minutes mins
Total Time 45 minutes mins
For a low-carb option, omit the mushrooms or replace them with zucchini. To freeze, assemble the casserole, cover tightly, and freeze for up to 2 months. Thaw overnight in the refrigerator before baking.
Keyword Beef Casserole, Casserole, Comfort Food, Family Dinner, Philly Cheesesteak Casserole