Combine rolled oats, chia seeds, cilantro, chile powder, cumin, paprika, salt, pepper, and allspice in a food processor. Blend until oats become close to a flour, but not quite.
Add carrots and blend until finely chopped. Add onions and minced garlic, pulsing until combined.
Add bell pepper, corn, brown rice, and black beans (be sure to pat them down with a towel to remove any excess moisture before putting them in the food processor). Pulse until the mixture begins to come together. A few of the beans should still be whole for an ideal texture.
Form mixture into patties, about 1/2 inch thick.
Cook in a skillet over medium heat with a drizzle of olive oil until browned, about 5 minutes each side.
OR
Bake at 425 degrees Fahrenheit for 20-25 minutes, flipping halfway. If using this method, consider brushing both sides of each patty with olive oil before baking.
Mix all ingredients together. Refrigerate until use.
8 servings
1 burger