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Italian Quinoa Stuffed Bell Peppers

Italian Stuffed Bell Peppers with Quinoa

These Italian stuffed peppers are filled with quinoa, white beans or ground turkey, veggies, and a cozy marinara sauce. They bake until tender with melty mozzarella and Parmesan on top. It’s an easy weeknight dinner that reheats, freezes, and adapts beautifully.
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Prep Time 30 minutes
Cook Time 35 minutes
Total Time 1 hour 5 minutes
Servings: 5 people
Course: Main course / Dinner
Cuisine: Italian / Italian-Inspired, Italian-American
Calories: 320
Ingredients Method Notes

Ingredients
  

Produce & Pantry
  • 4 large bell peppers red, yellow, or orange
  • 1 small onion diced
  • 1 –2 carrots diced
  • 1 cup sliced mushrooms
  • 3 –4 cloves garlic minced
  • 1 cup marinara sauce or 1 can diced tomatoes
  • 1 –2 tbsp olive oil
  • Salt and pepper
  • 1 –2 tsp Italian seasoning
  • Fresh basil or parsley for garnish
Grains, Beans & Protein
  • 1 cup cooked quinoa
  • 1 cup white beans rinsed, or 1 lb ground chicken or turkey
  • Optional: cooked rice instead of quinoa
Cheeses
  • 1 cup shredded mozzarella
  • ¼ cup grated Parmesan
Optional Add-ins
  • Red pepper flakes
  • Spinach
  • Provolone or fontina cheese swap

Method
 

Cook the Quinoa
  1. Rinse quinoa under cold water until it runs clear.
  2. Add 1 cup quinoa + 2 cups water (or broth) to a small pot.
  3. Bring to a boil, then lower the heat and simmer ~20 minutes until the liquid is absorbed.
  4. Remove from heat, cover, and let rest 5 minutes. Fluff.
Make the Filling
  1. Heat a pan over medium heat and drizzle in olive oil.
  2. Sauté onion and carrots for about 4 minutes until glossy.
  3. Add mushrooms and cook 2 minutes.
  4. Stir in garlic for 30 seconds.
  5. Add white beans (or browned ground turkey/chicken), cooked quinoa, and marinara/diced tomatoes.
  6. Season with salt, pepper, and Italian seasoning.
  7. Remove from heat and fold in most of the mozzarella and Parmesan so the stuffing binds.
Prepare the Peppers
  1. Cut peppers in half for faster cooking, or keep whole if you prefer.
  2. Remove seeds and trim the bottoms lightly if you need them to sit flat.
  3. Arrange snugly in a baking dish.
  4. Pour a small splash of water (¼–½ cup) into the bottom of the dish for steam.
Assemble & Bake
  1. Spoon the filling into each pepper, mounding it high.
  2. Sprinkle the remaining cheese on top.
  3. Bake at 375–400°F for 20–35 minutes, or until the peppers are tender but still holding their shape and the cheese is melted and bubbly.
Slow Cooker Method
  1. Sauté the filling as above.
  2. Stuff whole peppers and place upright in the slow cooker.
  3. Add ½ inch of water to the bottom.
  4. Cook on low for 4–6 hours.
  5. Add cheese at the end, cover, and let melt.

Notes

  • Rinsing quinoa keeps the filling from turning bitter.
  • A splash of water in the pan helps the peppers steam and soften evenly.
  • Cutting peppers into halves speeds up cooking.
  • The recipe freezes extremely well, baked or unbaked.
  • Leftovers reheat cleanly and keep their texture.
  • Mixing mozzarella with Parmesan gives the perfect mix of melt and flavor.