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Unstuffed peppers casserole in a white baking dish topped with melted Monterey Jack cheese, ground beef, rice, diced red and yellow bell peppers, rich tomato sauce, and fresh parsley, with a spoon scooping a serving.
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5 from 2 votes

Unstuffed Peppers

These Unstuffed Peppers are a cozy, one-skillet dinner made with ground beef, sausage, bell peppers, rice, and a rich tomato sauce, all topped with melted cheese. Easy, hearty, and perfect for weeknights.
Prep Time20 minutes
Cook Time40 minutes
Total Time1 hour
Course: Beef recipes
Cuisine: American
Keyword: unstuffed peppers
Servings: 6
Author: Tatiana

Ingredients

  • 1 tablespoon olive oil
  • 1 pound ground beef
  • Salt and black pepper
  • 1 small yellow onion diced
  • 3 large bell peppers diced (about 3 cups), 2 red and 1 yellow
  • 2 tablespoons tomato paste
  • 3 cloves garlic minced
  • 1 teaspoon EACH: dried basil, dried oregano, onion powder
  • ½ teaspoon smoked paprika
  • ½ teaspoon red pepper flakes
  • 1 can (14.5 ounces) diced tomatoes undrained
  • ½ tablespoon brown sugar
  • 2 teaspoons Worcestershire sauce
  • 1 teaspoon Dijon mustard
  • 1 ½ cups marinara sauce
  • ½ cup chicken broth
  • 1 ¾ cups cooked rice
  • 1 cup shredded cheddar
  • 1 cup shredded Monterey Jack
  • Fresh parsley for garnish

Instructions

  • Preheat oven to 375°F.
  • Cook the meat: Heat the oil In a large skillet over medium-high heat, cook ground beef with salt and black pepper until browned. Add the diced onion and cook until softened. Drain excess grease.
  • Add peppers & seasoning: Stir in the bell peppers and cook 4–5 minutes. Add tomato paste, garlic, basil, oregano, onion powder, smoked paprika, and red pepper flakes. Cook 1 minute, stirring.
  • Make the sauce: Add diced tomatoes (with juices), brown sugar, Worcestershire sauce, Dijon mustard, marinara, and chicken broth. Stir and simmer 5–8 minutes.
  • Add rice & cheese: Stir in the cooked rice. Sprinkle cheddar and Monterey Jack evenly over the top.
  • Bake: Transfer to the oven and bake uncovered for 15 minutes, until cheese is melted and bubbly. Garnish with fresh parsley and serve.

Notes

Bell peppers: Red and yellow are sweeter and more flavorful than green. Dice them roughly the same size so they cook evenly.
Rice: Use already-cooked rice — leftover or day-old works perfectly. Freshly cooked rice can make the dish too wet.
Tomato paste: Cook it for the full minute before adding liquids. This step caramelizes it slightly and adds a rich, deep flavor to the sauce.
Cheese: Shred your own if possible — pre-shredded cheese contains anti-caking agents that prevent it from melting as smoothly.
Skillet: Use a 12-inch oven-safe skillet so everything fits comfortably. If yours isn't oven-safe, transfer to a greased 9x13-inch baking dish before adding cheese.

Nutrition

Calories: 459kcal | Carbohydrates: 27g | Protein: 26g | Fat: 28g | Saturated Fat: 13g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 10g | Trans Fat: 1g | Cholesterol: 90mg | Sodium: 741mg | Potassium: 805mg | Fiber: 4g | Sugar: 10g | Vitamin A: 2758IU | Vitamin C: 90mg | Calcium: 341mg | Iron: 4mg