Black Bean Quinoa Stuffed Peppers with Avocado
Black Bean Quinoa Stuffed Peppers turn basic beans, quinoa, and sweet peppers into a colorful, filling dinner with creamy avocado on top.
This recipe is hearty, naturally plant-based, and easy to stretch for four servings. You get tender roasted peppers, fluffy quinoa, creamy beans, sweet corn, juicy tomatoes, and fresh avocado in every bite.
Why You’ll Love This Recipe
- Big flavor from simple pantry staples: Cumin, garlic, onion, tomatoes, and black beans make the filling taste warm and savory.
- Great texture: The peppers bake until tender while the quinoa filling stays fluffy with little pops of corn.
- Healthy and filling: Quinoa and black beans add plant protein, fiber, and slow carbs that keep you satisfied.
- Easy to prep ahead: Cook the quinoa and mix the filling earlier in the day, then stuff and bake at dinner time.
Budget & Health Tip: Use canned black beans and frozen corn to keep this meal affordable all year. Rinse the beans well to lower the salt, and use any color bell pepper that costs less that week.
Ingredients (Serves 4)
- 4 large bell peppers (about 680 g), halved lengthwise and seeded
- 1 cup dry quinoa (170 g), rinsed well
- 2 cups water (480 ml)
- 1 can black beans, 15 oz (425 g), drained and rinsed
- 1 cup corn kernels (165 g), frozen, fresh, or canned
- 1 cup diced tomatoes (180 g), drained if very juicy
- 2 cups baby spinach (60 g), roughly chopped
- 1 small onion (150 g), finely diced
- 2 garlic cloves (6 g), minced
- 1 ½ teaspoons ground cumin (3 g)
- ½ teaspoon fine salt (3 g), plus more to taste
- 1 ripe avocado (about 200 g), diced
Step-by-Step Instructions
1. Cook the Quinoa
Add the rinsed quinoa and water to a small saucepan. Bring it to a boil, then lower the heat and cover the pan. Simmer for about 15 minutes, until the water disappears and the quinoa looks fluffy with tiny curls around each grain.
Turn off the heat and let it rest, covered, for 5 minutes. Fluff it with a fork so it stays light instead of clumpy.
2. Prepare the Peppers
Heat the oven to 400°F (200°C). Place the pepper halves cut side up in a baking dish. If the peppers wobble, trim a very thin slice from the rounded side so they sit flat without cutting through the flesh.
Add a small splash of water to the bottom of the dish. This helps steam the peppers so they turn tender without drying out.
3. Mix the Filling
Add the cooked quinoa, black beans, corn, tomatoes, spinach, onion, garlic, cumin, and salt to a large bowl. Stir until the mixture looks colorful and evenly seasoned.
The warm quinoa will soften the spinach a little. The filling should smell earthy from the cumin and fresh from the garlic and tomatoes.
4. Fill and Bake the Peppers
Spoon the quinoa mixture into the pepper halves. Mound it gently, but do not pack it down too tightly. The filling needs a little space so the heat can move through it.
Cover the dish loosely with foil and bake for 25 minutes. Remove the foil and bake for 10 to 15 more minutes, until the peppers look glossy, the edges are tender, and the top of the quinoa filling is lightly toasted. Your kitchen should smell sweet, smoky, and warm from the peppers and cumin.
5. Add the Avocado and Serve
Let the stuffed peppers rest for 5 minutes. Top each serving with diced avocado right before eating so it stays fresh, creamy, and bright green.
Expert Troubleshooting & FAQs
Can I use canned black beans?
Yes. Canned black beans work well and save time. Drain and rinse them until the water runs mostly clear so the filling tastes clean, not salty or starchy.
Why are my peppers still too firm?
They need more covered baking time. Cover the dish again and bake for another 8 to 10 minutes. The peppers should feel tender when pierced with a fork, but they should still hold their shape.
How do I keep the filling from getting watery?
Drain juicy tomatoes, canned corn, and black beans well before mixing. If the filling still looks wet, let it sit for 2 minutes, then stir again before stuffing the peppers.
Can I make these stuffed peppers ahead?
Yes. Cook the quinoa and mix the filling up to 1 day ahead. Store it covered in the fridge. Stuff and bake the peppers when you are ready to eat, then add the avocado fresh at the end.
What can I use instead of quinoa?
Cooked rice works well and keeps the recipe gluten free. Use the same amount of cooked rice as cooked quinoa, and season to taste because rice is a little milder.
Estimated Nutritional Facts
Per serving, based on 2 stuffed pepper halves.
- Calories: about 335
- Protein: about 12 g
- Carbs: about 60 g
- Fats: about 7 g
Black Bean Quinoa Stuffed Peppers with Avocado
Ingredients
- 4 large bell peppers (about 680 g), halved lengthwise and seeded
- 1 cup dry quinoa (170 g), rinsed well
- 2 cups water (480 ml)
- 1 can black beans, 15 oz (425 g), drained and rinsed
- 1 cup corn kernels (165 g), frozen, fresh, or canned
- 1 cup diced tomatoes (180 g), drained if very juicy
- 2 cups baby spinach (60 g), roughly chopped
- 1 small onion (150 g), finely diced
- 2 garlic cloves (6 g), minced
- 1 ½ teaspoons ground cumin (3 g)
- ½ teaspoon fine salt (3 g), plus more to taste
- 1 ripe avocado (about 200 g), diced
Instructions
- 1. Cook the Quinoa. Add the rinsed quinoa and water to a small saucepan. Bring it to a boil, then lower the heat and cover the pan. Simmer for about 15 minutes, until the water disappears and the quinoa looks fluffy with tiny curls around each grain. Turn off the heat and let it rest, covered, for 5 minutes. Fluff it with a fork so it stays light instead of clumpy.
- 2. Prepare the Peppers. Heat the oven to 400°F (200°C). Place the pepper halves cut side up in a baking dish. If the peppers wobble, trim a very thin slice from the rounded side so they sit flat without cutting through the flesh. Add a small splash of water to the bottom of the dish. This helps steam the peppers so they turn tender without drying out.
- 3. Mix the Filling. Add the cooked quinoa, black beans, corn, tomatoes, spinach, onion, garlic, cumin, and salt to a large bowl. Stir until the mixture looks colorful and evenly seasoned. The warm quinoa will soften the spinach a little. The filling should smell earthy from the cumin and fresh from the garlic and tomatoes.
- 4. Fill and Bake the Peppers. Spoon the quinoa mixture into the pepper halves. Mound it gently, but do not pack it down too tightly. The filling needs a little space so the heat can move through it. Cover the dish loosely with foil and bake for 25 minutes. Remove the foil and bake for 10 to 15 more minutes, until the peppers look glossy, the edges are tender, and the top of the quinoa filling is lightly toasted. Your kitchen should smell sweet, smoky, and warm from the peppers and cumin.
- 5. Add the Avocado and Serve. Let the stuffed peppers rest for 5 minutes. Top each serving with diced avocado right before eating so it stays fresh, creamy, and bright green.
