Black Bean Burgers - The Scramble

Ingredients

• 15 oz. reduced-sodium canned black beans (drained and rinsed)
• 1 Tbsp. tomato paste or salsa (look for brands with no sugar added)
• 1/4 red onion (minced (1/2 cup))
• 1/2 cup bread crumbs (use wheat/gluten-free, if needed)
• 1 Tbsp. balsamic vinegar
• 1 egg (lightly beaten)
• 1/4 cup yellow cornmeal
• 3 Tbsp. canola or vegetable oil
• 6 whole wheat hamburger buns (use wheat/gluten-free, if needed)
• 6 leaves iceberg lettuce (for serving (optional))
• 1 tomato (sliced, for serving (optional))
• 6 slices Cheddar or Muenster cheese (for serving (optional))
• 1/2 cup salsa (ketchup, mustard, and/or barbecue sauce, for serving (optional))