Crockpot Kansas City Steak Soup

This slow-cooker steak soup is the ultimate set-it-and-forget-it dinner.

Browned ground beef, tender potatoes, sweet carrots, and crisp celery simmer for hours in a savory beef broth with diced tomatoes, creating a deeply comforting bowl that tastes like it simmered all day on the stove—because it did, just in the crockpot.

Perfect for busy weeknights, this soup fills the house with an irresistible aroma and delivers a hearty, satisfying meal with minimal effort.

Kansas City Steak Soup is a classic Midwestern comfort food, often found on diner menus and family tables. This version simplifies the traditional recipe by using a slow cooker, so the beef stays tender and the vegetables soften perfectly without constant stirring.

The combination of browned ground beef, potatoes, carrots, and celery in a rich beef broth is simple, honest, and deeply satisfying. Serve it with crusty bread or crackers for a complete meal that warms you from the inside out.

Ingredients

Why this recipe works

Browning the ground beef before adding it to the slow cooker is a crucial step. It develops deep, savory flavors through the Maillard reaction, which adds complexity to the broth that you simply can't get from raw beef. This step also renders out excess fat, leaving you with a cleaner, more flavorful soup.

The slow cooker does the rest of the work. Cooking on low for an extended time allows the flavors to meld and meld, while the vegetables soften to a tender, spoonable consistency.

The beef bouillon granules and broth create a robust, salty-savory base that complements the natural sweetness of the carrots and tomatoes.

Notes and substitutions

Use a 6-quart or larger slow cooker to accommodate all the ingredients comfortably. Ground beef with a higher fat content (like 80/20) works well because browning and draining removes excess grease. For a leaner option, use 90/10 and skip the draining step, though the soup may be slightly less rich.

Feel free to adjust the vegetables to what's on hand—parsnips, turnips, or green beans would all be welcome additions. The beef bouillon granules are key to the flavor; if you only have bouillon cubes, crush them before adding. The diced tomatoes add a subtle acidity that balances the richness of the beef.

• ground beef: Ground turkey or ground pork can be used; adjust cooking time if using poultry and ensure it reaches 165°F.
• beef bouillon granules: Use 4 beef bouillon cubes, crushed, or replace with 4 cups of beef broth and reduce the added broth by 1 cup.
• diced tomatoes: Use 2 cups of fresh diced tomatoes, or substitute with crushed tomatoes for a thicker broth.

Equipment

• Slow cooker (6-quart or larger)
• Large skillet
• Wooden spoon
• Measuring cups and spoons
• Cutting board
• Chef's knife
• Mixing bowl