Preheat a large skillet over medium-high heat.
Add olive oil, sliced bell peppers and red onion. Cook for 5-7 minutes until the veggies are tender. If using corn kernels, add them to the vegetable mixture for the last minute to warm.
Add cumin, smoked paprika, garlic powder, salt and pepper. Stir well.
Remove from heat and set aside.
Heat another skillet over medium-high heat.
Add one tortilla and cook for 1-2 minutes until it starts to brown.
Flip over the tortilla and sprinkle 1/4 cup of vegan cheese on half of it.
Add 1/4 of the cooked veggies on top of the cheese.
Fold the tortilla in half and press down with a spatula.
Cook for another 1-2 minutes until the cheese is melted and the tortilla is crispy.
Repeat with remaining tortillas and filling.
Serve hot and enjoy your delicious vegan quesadillas with veggies and vegan cheese!