Cheesy Quinoa Stuffed Peppers with Black Beans and Corn

These Cheesy Quinoa Stuffed Peppers are a filling vegetarian dinner that comes together in one baking dish. The bell peppers turn soft and sweet while the quinoa, black beans, and corn filling gets melty with pepper jack cheese.

They’re easy enough for a weeknight and colorful on the plate.

Why These Quinoa Stuffed Peppers Work

The quinoa filling stays moist thanks to a little tomato sauce, so the peppers don’t dry out in the oven.

Each pepper half holds its shape and gets a bubbly, golden cap of melted cheese on top.

Leftovers reheat beautifully, making them a smart pick for meal prep.

Ingredients

• 4 large bell peppers: use a mix of red, yellow, and orange for a pretty plate
• 2 tbsp olive oil, divided: 1 tbsp for brushing the peppers, 1 tbsp for the filling
• 1/2 cup finely chopped yellow onion
• 2 cloves garlic, minced
• 3/4 cup dry quinoa, rinsed well
• 1 1/2 cups vegetable broth
• 1 can (15 oz) black beans, drained and rinsed
• 1 cup frozen corn kernels, thawed
• 1/2 cup plain tomato sauce: not seasoned pasta sauce
• 1 tsp ground cumin
• 1/2 tsp chili powder
• Salt and black pepper
• 1 cup shredded pepper jack cheese (about 4 oz)
• Fresh cilantro leaves for garnish: optional

Variations / Substitutions

• Use pinto beans: pinto beans or even lentils swap in nicely for the black beans.
• Change the cheese: sharp cheddar, Monterey Jack, or a dairy-free shred all melt well.
• Add heat: stir in a minced jalapeño or a pinch of cayenne with the spices.
• Another grain: cooked brown rice or farro works if you swap the broth ratio accordingly.

For a low-carb option, try our Cauliflower Rice Stuffed Peppers.

How to Make Quinoa Stuffed Peppers

Step 1: Roast the Peppers

Preheat the oven to 400°F (200°C). Halve the bell peppers lengthwise, scoop out the seeds and ribs, then brush both sides with 1 tbsp of the olive oil and season lightly with salt and pepper. Arrange them cut side up on a baking sheet and roast for 15 minutes, until the peppers just start to soften.

The cut edges will curl slightly and you’ll see a little steam, but the peppers won’t be fully cooked yet. This gives them a head start so the filling and cheese don’t turn them to mush later.

Step 2: Cook the Quinoa Filling

While the peppers roast, warm the remaining 1 tbsp olive oil in a saucepan over medium heat. Add the chopped onion and cook for 3 to 4 minutes until translucent, then stir in the minced garlic and cook 30 seconds more. Add the rinsed quinoa and toast it, stirring, for 1 minute. Pour in the vegetable broth, bring it to a boil, then reduce the heat to low, cover, and simmer for 15 minutes. After the liquid is absorbed, take the pan off the heat and let it sit covered for 5 minutes, then fluff with a fork.

Toasting the quinoa deepens its nutty flavor and helps the grains stay separate. If the lid lifts early, the quinoa might end up a little wet, so let that steam finish the job.

Step 3: Stuff the Peppers

In a large bowl, combine the cooked quinoa, black beans, corn, tomato sauce, cumin, chili powder, and a pinch each of salt and pepper. Stir in 1/2 cup of the shredded pepper jack cheese. Spoon the mixture evenly into the par-roasted pepper halves, packing it gently so it mounds a bit.

The filling should be moist enough to hold together but not sloppy. The cheese inside will melt into the quinoa, binding everything into a savory stuffing. If a pepper half tilts, slice a tiny sliver off the rounded bottom so it sits flat.

Step 4: Bake and Serve

Sprinkle the remaining 1/2 cup cheese over the stuffed peppers. Return the baking sheet to the 400°F oven and bake for 10 to 15 minutes, until the cheese is melted and bubbly and the peppers are tender when pierced with a fork. Remove the peppers from the oven, scatter fresh cilantro leaves on top, and serve hot straight from the pan.

The cheese should look golden in spots, and the peppers will show a little char on the edges. Let them cool for just a minute before you lift them so the filling stays in place.

Tips for Foolproof Stuffed Peppers

• Pick peppers that are similar in size so they roast and bake at the same rate.
• If the cheese browns faster than you’d like, tent the pan loosely with foil for the last few minutes.
• For a dairy-free version, skip the cheese or use a plant-based shred that melts well.
• Leftover filling alone makes a great grain bowl topped with avocado and a squeeze of lime.

Bake times adjust slightly based on pepper size:

Keeping Leftover Stuffed Peppers

• Refrigerate: Store leftovers in an airtight container for up to 4 days.
• Reheating: Warm them in a 350°F oven for 10 to 15 minutes, or microwave individual portions until heated through.

What to Serve With Quinoa Stuffed Peppers

A tangy side salad with a lime vinaigrette brightens the plate, and a scoop of guacamole adds a cool, creamy contrast. If you want to round out the meal, a simple bowl of tortilla chips and salsa does the trick.

Frequently Asked Questions

Do I need to cook the quinoa before stuffing?

Yes. Raw quinoa won’t absorb enough liquid during the short bake time and will stay crunchy.

Can I make these on the grill?

Absolutely. Pre-roast the pepper halves on a medium grill, cut side down, for about 5 to 7 minutes. Fill them, return to the grill, and close the lid to melt the cheese.

Can I freeze stuffed peppers?

You can. Assemble them without baking, freeze on a tray until solid, then wrap well. Bake from frozen at 375°F for 40 to 50 minutes.

How do I make the filling extra creamy?

Stir in 2 oz of softened cream cheese or a couple tablespoons of sour cream when you mix the filling.

Cheesy Quinoa Stuffed Peppers Recipe

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 30 minutes mins

Total Time 45 minutes mins

Servings: 4 servings

Calories: 435

Ingredients Method Notes

Ingredients

  

• 4 large bell peppers
• 2 tbsp olive oil, divided
• 1/2 cup finely chopped yellow onion
• 2 cloves garlic, minced
• 3/4 cup dry quinoa, rinsed
• 1 1/2 cups vegetable broth
• 1 can (15 oz) black beans, drained and rinsed
• 1 cup frozen corn kernels, thawed
• 1/2 cup plain tomato sauce
• 1 tsp ground cumin
• 1/2 tsp chili powder
• Salt and black pepper
• 1 cup shredded pepper jack cheese
• Fresh cilantro leaves for garnish (optional)

Method

 

1. Preheat oven to 400°F. Halve peppers, remove seeds and ribs, brush with 1 tbsp oil, season with salt and pepper, and roast cut side up for 15 minutes.
2. Heat remaining 1 tbsp oil in a saucepan. Sauté onion 3-4 minutes, add garlic and cook 30 seconds. Stir in quinoa, toast 1 minute, then add broth. Boil, cover, and simmer 15 minutes. Let stand covered 5 minutes, then fluff.
3. Mix quinoa, beans, corn, tomato sauce, spices, and 1/2 cup cheese. Spoon into pepper halves.
4. Top with remaining 1/2 cup cheese. Bake 10-15 minutes until cheese is bubbly. Garnish with cilantro and serve hot.

Notes

Red and yellow peppers are sweeter, while green peppers have a more vegetal bite and benefit from an extra 5 minutes in the initial roast.