Three-Cheese Stuffed Pepper Bake with Grains and Herbs

Quick Recipe Version (TL;DR)

• Yield: 4 servings
• Prep Time: 25 minutes
• Cook Time: 50 minutes
• Total Time: 1 hour 15 minutes

Quick Ingredients

• 4 large bell peppers, halved and seeded
• 2 cups cooked mixed grains (from about 3/4 cup dry)
• 1 1/2 cups whole-milk ricotta cheese
• 1 1/2 cups shredded mozzarella cheese, divided
• 3/4 cup grated Parmesan cheese, divided
• 1 large egg
• 2 cups marinara or tomato-basil sauce, divided
• 2 tbsp chopped fresh parsley (plus extra for garnish)
• 1 tsp dried Italian seasoning
• 2 tbsp olive oil, divided
• 2 cloves garlic, minced
• Salt, black pepper, and red pepper flakes (optional)

Do This

• 1. Cook mixed grains according to package directions until tender; you need 2 cups cooked. Let cool slightly.
• 2. Preheat oven to 375°F (190°C). Halve and seed peppers, rub with 1 tbsp olive oil, season with salt, and place cut-side up in a 9×13-inch baking dish. Add 2 tbsp water, cover with foil, and bake 15 minutes.
• 3. In a large bowl, mix grains, ricotta, 1 cup mozzarella, 1/2 cup Parmesan, egg, 1 cup marinara, parsley, Italian seasoning, garlic, 3/4 tsp salt, and 1/4 tsp black pepper.
• 4. Spread 1/2 cup marinara in the bottom of the baking dish. Spoon cheesy grain filling into each pepper half, packing it in gently.
• 5. Top peppers with remaining 1/2 cup marinara, then sprinkle with remaining 1/2 cup mozzarella and 1/4 cup Parmesan. Drizzle with 1 tbsp olive oil.
• 6. Cover with foil and bake 30–35 minutes, then uncover and bake 10–15 more minutes, until peppers are tender and cheese is bubbly and lightly browned.
• 7. Let rest 5–10 minutes. Garnish with extra parsley and serve hot, spooning sauce from the pan over each portion.

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Why You’ll Love This Recipe

• Comfort-food cozy: melty three-cheese filling, tender peppers, and a bubbling tomato sauce baked all together.
• Hearty but wholesome: mixed grains add nutty flavor, fiber, and satisfying texture.
• Flexible and forgiving: use whatever grain blend and marinara you like, and adjust the herbs to your taste.
• Great for make-ahead: assemble earlier in the day and bake when you are ready for dinner.

Grocery List

• Produce: 4 large bell peppers (any colors), 2 cloves garlic, fresh parsley (and/or basil for garnish)
• Dairy: Whole-milk ricotta, low-moisture mozzarella (block or pre-shredded), Parmesan cheese, 1 large egg
• Pantry: Mixed grains (such as brown rice, quinoa, farro, or a blend), marinara or tomato-basil sauce, olive oil, dried Italian seasoning, salt, black pepper, red pepper flakes (optional), water or broth for cooking grains

Full Ingredients

For the Peppers

• 4 large bell peppers (red, yellow, or orange look especially nice)
• 1 tbsp olive oil
• 1/4 tsp kosher salt (for seasoning peppers)
• 2 tbsp water (for the baking dish, to help steam)

For the Mixed Grains

• 3/4 cup dry mixed grains (such as a blend of brown rice, quinoa, and farro)
• 2 cups water or low-sodium vegetable/chicken broth
• 1/4 tsp kosher salt (for cooking grains)

For the Three-Cheese Filling

• 1 1/2 cups whole-milk ricotta cheese
• 1 1/2 cups shredded low-moisture mozzarella cheese, divided
• 3/4 cup finely grated Parmesan cheese, divided
• 1 large egg
• 2 cups marinara or tomato-basil sauce, divided
• 2 tbsp finely chopped fresh flat-leaf parsley (plus more for garnish)
• 1 tsp dried Italian seasoning
• 2 cloves garlic, minced
• 3/4 tsp kosher salt (for the filling; adjust to taste)
• 1/4 tsp freshly ground black pepper
• 1/4 tsp red pepper flakes (optional, for gentle heat)

To Finish the Bake

• 1 tbsp olive oil (drizzled on top before baking)
• Extra chopped fresh herbs (parsley and/or basil) for serving

Step-by-Step Instructions

Step 1: Cook the Mixed Grains

If your grains are not already cooked, start here. Rinse 3/4 cup mixed grains in cool water and drain well. In a medium saucepan, bring 2 cups water or broth and 1/4 teaspoon kosher salt to a boil. Stir in the grains, reduce heat to low, cover, and simmer according to package directions (usually 15–25 minutes), until tender and most of the liquid is absorbed.

Remove from the heat, fluff with a fork, and let the grains cool for at least 5–10 minutes. You should have about 2 cups cooked grains. This slight cooling step helps them mix more easily with the cheeses without scrambling the egg.

Step 2: Prep and Pre-Bake the Peppers

While the grains cook, preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch (23×33 cm) baking dish. Slice the bell peppers in half through the stems, then remove the seeds and white membranes. Rub the cut sides and cavities with 1 tablespoon olive oil and sprinkle with 1/4 teaspoon kosher salt.

Arrange the peppers cut-side up in the prepared baking dish. Pour 2 tablespoons water into the bottom of the dish (this helps steam the peppers so they become tender). Cover tightly with foil and bake for 15 minutes. Remove from the oven and set aside, keeping the oven at 375°F (190°C). Carefully pour off any excess liquid in the dish, if needed.

Step 3: Mix the Herbed Three-Cheese Filling

In a large mixing bowl, combine the cooled cooked grains, 1 1/2 cups ricotta, 1 cup shredded mozzarella, and 1/2 cup grated Parmesan. Add 1 large egg, 1 cup marinara sauce, 2 tablespoons chopped fresh parsley, 1 teaspoon dried Italian seasoning, and the minced garlic.

Season the mixture with 3/4 teaspoon kosher salt, 1/4 teaspoon black pepper, and the red pepper flakes if using. Stir everything together until well combined. The filling should be thick, creamy, and spoonable, with the grains evenly coated in the cheesy mixture.

Step 4: Fill the Pepper Halves

Spread 1/2 cup of the remaining marinara sauce over the bottom of the baking dish, nudging it around the peppers. This prevents sticking and creates a tasty saucy base.

Working one at a time, spoon the cheese-and-grain mixture into each par-baked pepper half, pressing lightly with the back of the spoon so the filling is snugly packed. Mound it slightly above the edges of the pepper; you want generously filled, domed peppers. Use all of the filling, dividing it as evenly as you can.

Step 5: Add Sauce and Extra Cheese on Top

Spoon the remaining 1/2 cup marinara over the tops and around the sides of the stuffed peppers, letting a little sauce drip down into the baking dish. Sprinkle the remaining 1/2 cup shredded mozzarella and 1/4 cup grated Parmesan evenly over the peppers.

Drizzle the tops lightly with the remaining 1 tablespoon olive oil. This helps the cheese brown beautifully and adds a lovely, rich flavor.

Step 6: Bake Until Tender, Bubbly, and Golden

Cover the baking dish tightly with foil and bake at 375°F (190°C) for 30–35 minutes. This covered time allows the peppers to soften fully and the filling to heat through. Then remove the foil and continue baking for 10–15 minutes, until the cheese is melted, deeply bubbly, and golden-brown in spots.

If you like a more deeply browned top, you can switch the oven to broil for 1–3 minutes at the very end. Watch closely so the cheese does not burn.

Step 7: Rest, Garnish, and Serve

Remove the stuffed pepper bake from the oven and let it rest for 5–10 minutes. This short rest helps the filling set slightly so it is easier to scoop and serve without falling apart.

Sprinkle generously with extra chopped fresh parsley (and/or basil, if you like) before serving. Spoon some of the warm tomato sauce from the bottom of the dish over each pepper when plating. Serve hot with a simple green salad, garlic bread, or a side of extra grains if you want to stretch the meal.

Pro Tips

• Use leftover grains: This recipe is perfect for using up extra cooked rice, quinoa, or grain blends. Just measure 2 cups cooked and skip the grain-cooking step.
• Mix pepper colors: Combining red, yellow, and orange peppers makes the finished bake look extra inviting and adds subtle flavor differences.
• Do a taste test: Before adding the egg, taste the filling and adjust the salt, pepper, and herbs. Once it is seasoned well, stir in the egg.
• Avoid soggy peppers: Do not overfill the dish with extra sauce. The amounts listed keep things saucy but not watery.
• Make it extra golden: For a crispier top, broil at the very end and grate a touch more Parmesan over the peppers just before broiling.

Variations

• Spinach three-cheese filling: Stir 1–1 1/2 cups chopped fresh spinach (squeezed dry if using frozen) into the cheese-and-grain mixture for extra greens.
• Spicier version: Use a spicy marinara, increase the red pepper flakes to 1/2 teaspoon, and add a pinch of smoked paprika to the filling.
• Extra-protein twist: Fold in 1 cup cooked lentils or finely chopped cooked chicken or Italian sausage to make the dish even heartier.

Storage & Make-Ahead

To make ahead, assemble the stuffed peppers completely (through Step 5), cover tightly, and refrigerate for up to 24 hours before baking. When you are ready to cook, bake covered at 375°F (190°C) for 35–40 minutes, then uncover and bake 10–15 minutes more, until hot and bubbly.

Leftovers keep well. Cool the peppers completely, then transfer to an airtight container and refrigerate for up to 4 days. Reheat individual portions in the microwave until hot, or warm the whole dish in a 350°F (175°C) oven, covered, for 20–25 minutes. For longer storage, you can freeze the baked, cooled peppers for up to 2 months; thaw overnight in the refrigerator before reheating.

Nutrition (per serving)

Approximate per serving (1/4 of the recipe): about 520 calories, 26 g protein, 27 g fat, 12 g saturated fat, 40 g carbohydrates, 5 g fiber, 9 g sugars, and 940 mg sodium. Values will vary based on the specific marinara, grain blend, and cheeses you use.