All the hearty, flavorful goodness of a stuffed pepper in one easy-to-make casserole! Stuffed pepper casserole is easy, cheesy, and packed to the brim with delicious seasoned rice and vegetables.
Preheat the oven to 375 degrees Fahrenheit. Spray the 9x13 casserole dish with nonstick cooking spray and set aside.
In a large skillet, add 1 tablespoon olive oil, then cook and brown 1 ½ pounds lean ground beef over medium-high heat.
Add 1 red bell pepper diced, 1 orange bell pepper diced, 1 green bell pepper diced, and 1/2 cup onion diced, then stir and cook for 5 minutes until the vegetables soften.
Add in 2 teaspoons garlic minced, 1 tablespoon Worcestershire sauce, 3/4 teaspoon salt, 1/4 teaspoon ground black pepper, 1/2 teaspoon paprika, and 2 teaspoons Italian seasoning, then stir to combine.
Pour in 14 ounces diced tomatoes, with juice, 1 ½ cups beef broth, 8 ounces tomato sauce, 1 cup long grain white rice, and 1 cup shredded colby jack cheese. Reserve the remaining ½ cup cheese for the top.
Pour the mixture into the prepared baking dish. Top with remaining cheese, cover with aluminum foil, then bake for about 45 minutes. The liquid should be absorbed, and the rice cooked through.