Santa Fe Trail Beef & Bean Casserole

This casserole is a crowd feeder built from pantry staples. Two pounds of ground beef browned with onion and green pepper get mixed with canned green beans and undiluted tomato soup, then baked with a thick mashed potato cap that turns golden on top.

Using the tomato soup undiluted is key. It acts as a thick, concentrated sauce rather than a thin broth, coating the beef and green beans in a rich, tomatoey glaze that holds the filling together. Diluting it would make the casserole watery.

The mashed potato topping gets enriched with eggs before going on. Those eggs serve a purpose beyond nutrition: they help the potato layer set firm during the second bake, creating a crust that holds its shape when you scoop out servings. Without eggs, the potatoes would stay soft and slide around.

The two-stage bake (30 minutes for the filling, then 15 to 20 with the potatoes on top) ensures the beef mixture is bubbling hot before the potato layer goes on. This prevents the bottom from being undercooked while you wait for the top to brown.

Pro Tips

• Drain the browned beef well. Excess grease trapped under the potato topping makes the casserole greasy.
• Spread the mashed potatoes evenly and seal them to the edges of the dish. Gaps let steam escape and the filling bubbles up through holes.
• Use a fork to rough up the potato surface before the second bake. The peaks and ridges brown nicely and add texture.
• This feeds 10, so it’s a great potluck or family reunion dish.

Variations

• Stir in a can of kidney beans with the green beans for a heartier Southwestern filling.
• Add a cup of shredded cheddar on top of the potatoes during the last 5 minutes for a cheesy crust.
• Use sweet potatoes for the topping to add a slightly sweet contrast to the savory beef.