Slow Cooker Sloppy Joe Casserole with Cheddar and Bread Crumbs

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A cozy slow cooker casserole layering seasoned ground beef in a tangy tomato sauce, topped with melted cheddar and crispy breadcrumb topping — perfect for hands-off comfort food. This american-inspired slow cooker ready in about 170 minutes pairs ground beef, medium, finely chopped yellow onion, medium, diced green bell pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 520 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 150 min Serves 6 American cuisine 520 cal/serving
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Ingredients

Instructions

  1. Step 1: In a large skillet over medium-high heat, cook 1.5 lb ground beef with 1 medium finely chopped yellow onion, 1 medium diced green bell pepper, and 3 minced garlic cloves until the beef is browned and the vegetables are soft, about 7-8 minutes. Drain excess fat.
  2. Step 2: Stir in 15 oz tomato sauce, 1/2 cup ketchup, 1 tbsp Worcestershire sauce, 2 tbsp brown sugar, 1 tbsp yellow mustard, 1 tsp salt, and 1/2 tsp black pepper. Bring to a simmer and cook for 5 minutes to blend flavors.
  3. Step 3: Transfer the beef mixture to a slow cooker set to low. Spread evenly, then sprinkle 2 cups shredded sharp cheddar cheese over the top.
  4. Step 4: In a small bowl, combine 1 cup Italian seasoned bread crumbs with 2 tbsp melted butter. Sprinkle the breadcrumb mixture evenly over the cheese layer.
  5. Step 5: Cover and cook on low for 2-3 hours until the cheese is melted and the topping is golden and crisp. Serve warm with bread or over toasted buns.

Equipment for this recipe

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Frequently asked questions

How long does Slow Cooker Sloppy Joe Casserole with Cheddar and Bread Crumbs take to make?

Total time is about 170 minutes (20 min prep + 150 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Slow Cooker Sloppy Joe Casserole with Cheddar and Bread Crumbs?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep ground beef from drying out.

Can I substitute ingredients in Slow Cooker Sloppy Joe Casserole with Cheddar and Bread Crumbs?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Slow Cooker Sloppy Joe Casserole with Cheddar and Bread Crumbs for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Slow Cooker Sloppy Joe Casserole with Cheddar and Bread Crumbs?

American slow cooker like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.