Description

This Mushroom Cheeseburger Casserole is cozy, creamy comfort food in a pan. Savory ground beef, tender mushrooms, and onions are folded into a rich, cheesy mushroom sauce, then topped with crisp tater tots and melted cheddar. It’s an easy, family-friendly bake that tastes like a loaded cheeseburger with a creamy twist.

Ingredients

Scale

1 pound ground beef
1 cup mushrooms, sliced
1 onion, chopped
2 cloves garlic, minced
1 cup cheddar cheese, shredded
1 cup cream of mushroom soup
1/2 cup milk
1 tablespoon Worcestershire sauce
1 teaspoon mustard (yellow or Dijon)
Salt, to taste
Black pepper, to taste
4 cups frozen tater tots
Fresh parsley, chopped, for garnish

Instructions

Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish and set aside.
In a large skillet over medium heat, cook the ground beef, breaking it up with a spoon, until browned and fully cooked. Drain off any excess fat.
Add the chopped onion, sliced mushrooms, and minced garlic to the skillet with the beef. Sauté for 5–7 minutes, stirring occasionally, until the vegetables are tender and most of the moisture has cooked off.
Stir in the cream of mushroom soup, milk, Worcestershire sauce, mustard, salt, and black pepper. Mix until everything is well combined and creamy. Let the mixture simmer for 2–3 minutes to heat through and thicken slightly.
Transfer the beef and mushroom mixture to the prepared baking dish, spreading it into an even layer.
Arrange the tater tots in a single layer over the top of the beef mixture, covering it completely.
Sprinkle the shredded cheddar cheese evenly over the tater tots.
Bake in the preheated oven for 30–35 minutes, or until the tater tots are golden brown, the cheese is melted and bubbly, and the casserole is hot all the way through.
Remove from the oven and let the casserole cool for a few minutes to set. Garnish with freshly chopped parsley, slice into portions, and serve warm.

Notes

Season carefully if your cream of mushroom soup is already salty—taste the mixture before adding extra salt.
If you like extra cheesiness, add an additional 1/2 cup of shredded cheddar on top during the last 5–10 minutes of baking.
Letting the casserole rest for a few minutes after baking helps it set and makes cleaner slices.

Prep Time: 15 minutes
Cook Time: 35 minutes
Category: Main Course, Casserole
Method: Baked
Cuisine: American-Inspired

Nutrition

Serving Size: 1/6 of casserole
Calories: ≈450 kcal
Sugar: ≈4–6 g
Sodium: ≈800–1,000 mg (varies with soup and cheese brands)
Fat: ≈28–32 g
Saturated Fat: ≈13–15 g
Unsaturated Fat: ≈14–17 g
Trans Fat: ≤1 g (varies with tater tots and beef)
Carbohydrates: ≈28–32 g
Fiber: ≈2–3 g
Protein: ≈20–24 g
Cholesterol: ≈80–100 mg

Keywords: mushroom cheeseburger casserole, tater tot casserole, ground beef casserole, family dinner, comfort food bake