Cook the beef and onion: In a large skillet or pot with a snug-fitting lid, cook the ground beef and diced onion over medium heat until the beef is fully browned. Drain off any excess grease.
1 pound lean ground beef, ½ cup diced white onion
Add the broth and seasonings: Return the beef to the pan. Stir in the beef broth, ketchup, mustard, salt, and pepper.
4 cups low-sodium beef broth, ⅓ cup ketchup, 1 tablespoon yellow mustard, 1 teaspoon salt, ¼ teaspoon ground black pepper
Add the pasta and cook: Stir in the uncooked elbow macaroni. Bring the mixture to a boil, then cover and reduce the heat. Simmer for 10 to 12 minutes, stirring occasionally. Return the lid to the pan.
1 pound uncooked elbow macaroni
Uncover and finish cooking: Remove the lid and let it cook for another 3 to 5 minutes, or until the noodles are tender and most of the liquid is absorbed.
Add the cheese and dairy: Stir in the sour cream, milk, and 2 cups of the shredded cheddar cheese. Mix until smooth and creamy. Sprinkle the remaining 1 cup of cheese over the top and let it melt.
½ cup sour cream, ¼ cup milk
Serve and garnish: Top individual servings with shredded lettuce and diced tomato, if desired. Serve hot.
Notes
Servings: The calories listed are an approximation based on the ingredients in the recipe card and a serving size of 1 ½ cups of the cheeseburger casserole. Actual calories will vary.
Block vs. Bagged Cheese: Freshly shredded cheese melts best. If using pre-shredded, Tillamook or Kraft Creamy Melt are two of our favorites.
Room Temp Ingredients: Let cold ingredients like sour cream, milk, and cheese sit out for a bit before adding them to the pan. This helps prevent curdling and keeps the sauce smooth.
Garnishes: Add your favorite garnishes like, shredded lettuce, diced tomatoes, crumbled bacon, or chopped pickles.
Storage: Store leftovers in the fridge for 3–4 days. This casserole doesn't freeze well.
Nutrition Facts
Cheeseburger Casserole
Serving Size
1.5 cups
Amount per Serving
Calories
690
% Daily Value*
Fat
29
g
45
%
Saturated Fat
15
g
75
%
Trans Fat
0.3
g
Polyunsaturated Fat
2
g
Monounsaturated Fat
7
g
Cholesterol
116
mg
39
%
Sodium
1566
mg
65
%
Potassium
661
mg
19
%
Carbohydrates
64
g
21
%
Fiber
3
g
12
%
Sugar
7
g
8
%
Protein
42
g
84
%
Vitamin A
773
IU
15
%
Vitamin C
2
mg
2
%
Calcium
471
mg
47
%
Iron
3
mg
17
%
* Percent Daily Values are based on a 2000 calorie diet.