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Dinner · Part 2 of 3: Instructions

Slow Cooker Cowboy Casserole with Melty Cheddar Step-by-step instructions

A hot slow cooker filled with cowboy casserole showing melted bubbly cheddar cheese on top
Prep
Cook
Total
Serves
6

Before you start

Before starting, gather all the ingredients and prep the vegetables to ensure a smooth cooking process. Peel the Russet potatoes and slice them evenly into one-quarter-inch rounds; uniform slices are essential for even cooking.

Drain and rinse the canned kidney beans thoroughly to remove excess starch and sodium, and measure out the chili sauce so everything is ready to go.

Ingredients at a glance (5)
  • 1 1/2 lbs ground beef
  • 1 can (15 oz) kidney beans, drained and rinsed
  • 1 can (15 oz) chili sauce
  • 4 medium Russet potatoes, peeled and sliced into 1/4-inch rounds
  • 2 cups shredded cheddar cheese

Instructions

Prep and Browning

  1. Brown the Ground Beef
    In a large skillet over medium-high heat, cook the ground beef until it is completely browned and no longer pink. Drain any excess grease from the skillet to keep the casserole from becoming oily.
    Look for The beef should be completely browned and no longer pink.
    Tip Use a wooden spoon to break up the beef into small crumbles as it cooks.
  2. Combine Beef and Beans
    Add the drained kidney beans and the chili sauce directly into the skillet with the browned beef. Stir everything together until the beans and beef are thoroughly coated in the sauce, then remove the skillet from the heat.
    Look for The mixture should be fully combined and uniform.
    Tip Rinsing the kidney beans helps remove excess starch for a cleaner sauce.

The ground beef should be completely browned with no pink remaining. The beef and beans should be thoroughly combined with the chili sauce, releasing a rich, savory scent throughout the kitchen before the mixture is removed from the heat and layered.

Layering the Casserole

  1. Layer Potatoes and Beef
    Grease the slow cooker insert. Arrange half of the sliced Russet potatoes in an even layer at the bottom. Spread half of the beef and bean mixture over the potatoes. Repeat with the remaining potatoes and the remaining beef mixture.
    Look for The layers should be even and flat.
    Tip Keep potato slices uniform at one-quarter inch so they cook at the same rate.

The potatoes and beef mixture should be layered evenly inside the greased slow cooker insert. The chili sauce should coat the layers well, providing enough moisture to cook the potatoes without making the entire casserole watery.

Slow Cooking and Cheese Topping

  1. Slow Cook the Casserole
    Cover the slow cooker with the lid and cook on low for 7 to 8 hours, or on high for 4 hours, until the potatoes are completely tender when pierced with a fork. Ensure the ground beef mixture reaches a safe internal temperature of 160°F (71°C).
    Look for The potatoes should be soft and tender when pierced.
    Safe temperature 160°F (71°C) internal temperature (ground meat)
    Tip Avoid opening the lid during cooking as this releases valuable heat and steam.
  2. Melt the Cheddar Cheese
    Sprinkle the shredded cheddar cheese evenly over the top of the hot casserole. Cover the slow cooker with the lid again and cook for an additional 15 minutes, or until the cheese is completely melted, bubbling, and stretchy.
    Look for The cheese must be melted, bubbly, and hot.
    Tip Freshly grated cheese from a block melts much smoother than pre-shredded bags.

The potatoes must be completely tender when pierced with a fork, and the ground beef mixture must reach a safe internal temperature of 160°F (71°C).

The cheddar cheese on top should be fully melted, bubbling, and slightly golden around the edges, creating a perfect stretchy pull when scooped.

Common mistakes

One common mistake is slicing the potatoes too thick, which prevents them from cooking through during the slow cooking process and leaves them crunchy. Ensure the slices are no thicker than one-quarter of an inch.

Another frequent error is skipping the browning of the ground beef before adding it to the slow cooker. Browning develops essential caramelized flavors and allows you to drain off excess grease, preventing an oily final casserole.

How to tell it’s done

The casserole is fully cooked when the potatoes in the center are tender enough to be easily pierced with a fork.

It is crucial to verify that the ground beef mixture has reached a safe internal temperature of 160°F (71°C) using a digital food thermometer inserted into the center of the dish. The cheese on top should be completely melted, bubbling vigorously at the edges, and hot throughout.

  • Ground meat: 160°F (71°C) in the thickest part

Coming up in Part 3: common questions

  • Can raw potatoes go directly into the slow cooker?
  • How can a greasy casserole be prevented?
  • Can this recipe be cooked on high instead of low?
  • What is the best way to slice the potatoes evenly?

Also in Part 3: variations (Spicy Cowboy Casserole, Bacon Cowboy Casserole), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 4 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)