Preheat the oven to 400 degrees Fahrenheit.
Rinse, dry, and cut off the tops and remove the cores of 6 bell peppers.
Place the peppers cut side up in a 9 x 13 inch baking dish (or use a similarly sized dish that accommodates the peppers).
Rinse and drain 1 1/2 cups canned chickpeas with no added salt, then add them to a large mixing bowl.
Add 1 1/2 cups chopped cherry tomatoes, 1/2 cup finely chopped onion, 2 tablespoons chopped fresh basil, 1 teaspoon chopped garlic, 1 tablespoon extra virgin olive oil, 1/2 teaspoon salt, 1/8 teaspoon black pepper, pinch of crushed red pepper flakes (optional), and half of the shredded vegan cheese (1/2 cup) to the mixing bowl, then mix well.
Spoon that mixture into the peppers, then sprinkle the rest of the grated vegan cheese on top.
Bake, covered with either a lid or aluminum foil, at 400 degrees Fahrenheit for 45 minutes or until the peppers are tender, then remove the cover and bake for an additional 10 minutes.