In a medium sauté pan over medium heat, add 2 tablespoons olive oil, onion, and peppers. Cook until translucent. Add garlic and black olives. Stir to combine. Cook 1-2 minutes. Remove from heat.
Add beans to mixing bowl and smash with potato masher or your fingers. Add oats, spices, bread crumbs, egg whites and veggies. Thoroughly mix all ingredients and form into 12 patties, cover and refrigerate for 30 minutes.
Preheat oven to 400°F. Prepare baking sheet with olive oil spray.
Cook burgers on a baking sheet for 30 minutes, flipping after 15 minutes.