In a large skillet, heat the olive oil over medium heat. Add onion, garlic, jalapeño, and corn. Cook for 5-7 minutes until fragrant, and the onion is translucent.
Add quinoa, tomatoes, beans, taco seasoning, and broth. Stir to mix all together. Bring mixture to a boil, cover and reduce heat to low (simmer). Keep covered for about 15-20 minutes, or until quinoa has absorbed the liquid and is nice and fluffy.
Squeeze lime juice over the top of the quinoa. Top with pepperjack cheese (if using), and place in the oven for 5 minutes or until the cheese is nice and bubbly.
Serve hot with sliced avocado or fresh cilantro (if using).
Notes
*You can use your favorite store bought taco seasoning or use a homemade variation: 1 tbsp chili powder, 1 tsp cumin, 1 tsp ground coriander, 1/2 tsp smoked paprika, 1/2 tsp salt, pinch of cayenne pepper.