Slow Cooker Beef Stuffed Peppers

When the weather turns chilly, nothing beats a warm, homemade dinner that practically cooks itself. These slow cooker beef stuffed peppers are an old-fashioned family favorite made with just four simple ingredients: bell peppers, ground beef, pasta sauce, and shredded mozzarella cheese.

This easy crockpot stuffed peppers recipe brings together tender bell peppers, savory seasoned beef, rich tomato sauce, and gooey melted cheese for a comforting meal that tastes like something Grandma would make. With minimal prep and a slow cooker doing most of the work, it’s perfect for busy weeknights, cozy autumn evenings, and affordable family dinners.

If you’re looking for an easy stuffed peppers recipe without complicated ingredients, this 4-ingredient version is a delicious place to start. Serve it with mashed potatoes, buttered egg noodles, or crusty bread for a satisfying dinner everyone will love.

Why You’ll Love These Slow Cooker Stuffed Peppers

• Only 4 ingredients: This simple crockpot dinner uses everyday ingredients you can find at almost any grocery store.
• Easy meal preparation: Brown the beef, fill the peppers, add the sauce, and let the slow cooker handle the rest.
• Budget-friendly family meal: Ground beef and bell peppers make a hearty dinner without requiring an expensive shopping list.
• Rich, comforting flavor: Tomato sauce, savory beef, and melted mozzarella create a classic combination that feels warm and satisfying.
• Perfect for busy evenings: Prepare everything ahead of time and enjoy a home-cooked meal with less hands-on effort.
• Easy to customize: Add cooked rice, switch up the cheese, or use different colored bell peppers to suit your family’s preferences.

Ingredients for 4-Ingredient Beef Stuffed Peppers

Servings: 4

Prep time: 15 minutes

Cook time: 5–6 hours on LOW or 3–4 hours on HIGH

Ingredients:

• 4 bell peppers, tops removed and seeds discarded
• 1 pound ground beef
• 1 jar (24 ounces) pasta sauce
• 1½ cups shredded mozzarella cheese, divided

How to Make Slow Cooker Beef Stuffed Peppers

Step 1: Prepare the bell peppers

Wash the bell peppers thoroughly. Cut off the tops, remove the seeds and membranes, and set the peppers aside. Choose peppers with relatively flat bottoms so they stand upright in the slow cooker.

Step 2: Brown the ground beef

Place the ground beef in a skillet over medium heat. Cook until completely browned, breaking it into small crumbles with a spoon. Drain off excess grease before preparing the filling.

Step 3: Make the cheesy beef filling

Transfer the cooked beef to a bowl. Stir in approximately 1 cup of pasta sauce and 1 cup of shredded mozzarella cheese until everything is evenly combined.

Step 4: Stuff the peppers

Spoon the beef mixture into the hollowed bell peppers, dividing it evenly among the four peppers. Avoid packing the filling too tightly.

Step 5: Add the sauce to the slow cooker

Spread a little of the remaining pasta sauce across the bottom of the slow cooker. Arrange the stuffed peppers upright, then spoon the remaining sauce over and around them.

Step 6: Cook until tender

Cover and cook on LOW for 5–6 hours or HIGH for 3–4 hours, until the peppers are tender and the filling reaches a safe internal temperature of 160°F (71°C).

Step 7: Add the mozzarella cheese

During the final 10 minutes of cooking, sprinkle the remaining mozzarella over the peppers. Cover again and allow the cheese to melt completely before serving.

Serve warm with extra tomato sauce spooned over each pepper.

Tips for the Best Crockpot Stuffed Peppers

Choose the right bell peppers. Green bell peppers offer a traditional, slightly earthy flavor, while red, yellow, and orange peppers are naturally sweeter.

Brown the beef first. This improves the flavor and allows you to drain away excess grease before adding the filling to the slow cooker.

Add cooked rice for a heartier meal. Stir approximately 1 cup of cooked rice into the beef mixture before stuffing the peppers. This creates a more traditional stuffed pepper filling and helps stretch the recipe.

Try a different cheese. Monterey Jack, mild cheddar, or an Italian cheese blend can replace mozzarella for a slightly different flavor.

Prepare ahead of time. Brown the beef and prepare the filling the night before. Refrigerate the filling and cleaned peppers separately, then assemble and cook the next day. Avoid putting a cold ceramic slow cooker insert directly into a preheated appliance unless the manufacturer allows it.

Keep the peppers upright. Nestle them close together to prevent tipping. If needed, trim a very small amount from the bottom of a pepper without creating a hole.

What to Serve with Beef Stuffed Peppers

These easy slow cooker stuffed peppers pair beautifully with simple side dishes:

• Creamy mashed potatoes for a classic comfort food dinner
• Buttered egg noodles to soak up the tomato sauce
• Crusty bread or garlic bread for dipping
• Steamed green beans or roasted vegetables for extra color
• A crisp garden salad for a fresh contrast
• Cooked white rice for an extra filling meal

Are Slow Cooker Stuffed Peppers Healthy?

These homemade beef stuffed peppers provide protein from the ground beef and calcium and protein from the mozzarella cheese. Bell peppers also contribute vitamin C, fiber, and other essential nutrients.

For a lighter version, choose lean ground beef, compare pasta sauce labels for sodium and added sugar, and serve the peppers with steamed vegetables or a fresh salad. Adding cooked brown rice can increase the fiber content, while reducing the cheese slightly can lower the saturated fat content.

The overall nutritional value depends on the ingredients and portion sizes you use.

Frequently Asked Questions

Can I put raw ground beef in stuffed peppers in the slow cooker?

Browning the ground beef first is recommended for better flavor and easier grease removal. It also makes it easier to prepare a well-combined filling before stuffing the peppers.

Do I need to add water to the slow cooker?

No additional water is usually necessary because the pasta sauce provides moisture as the peppers cook. Keep the lid closed to help retain moisture throughout cooking.

Can I make stuffed peppers without rice?

Absolutely! This four-ingredient recipe skips rice entirely, making it a simple, meat-and-cheese-filled dinner. You can add cooked rice if you prefer a more traditional filling.

Can I use frozen stuffed peppers?

For the best texture and more predictable cooking, use fresh peppers and thaw frozen ingredients safely before assembly. Cooking times can vary, so always verify that the beef filling reaches 160°F (71°C).

How should I store leftovers?

Refrigerate leftovers in an airtight container within two hours of cooking and use within 3–4 days. Reheat thoroughly to 165°F (74°C). You can also freeze cooled portions in freezer-safe containers for convenient future meals.

A Cozy Family Dinner with Just Four Ingredients

These slow cooker beef stuffed peppers prove that a delicious homemade dinner doesn’t need a long ingredient list or hours of active cooking. Tender bell peppers, hearty ground beef, rich tomato sauce, and melted mozzarella come together in one easy crockpot recipe that’s ideal for chilly evenings and busy family schedules.

Whether you serve them for a weeknight supper, a relaxed Sunday dinner, or a comforting autumn meal, these easy crockpot stuffed peppers bring old-fashioned flavor to the table with very little fuss.