Black Bean Power Burger with Avocado Crema

For the caramelized Onion

• 1 inch yellow onion halved, peeled and cut into ¼- slices
• 2 tablespoons vegetable oil I used olive
• kosher salt to taste

For the avocado Crema

• 1 avocado ripe
• ¼ cup sour cream non-fat Greek yogurt, plain
• lime juice juice of ½ lime
• kosher salt to taste

For the burger

• 1 ½ cups power blend greens brand: Mann’s
• 1 clove garlic minced, large
• 1 15- ounce black beans drained, canned
• 1 egg
• ½ cup bread crumbs gluten free
• 1 tablespoon sriracha
• 1 teaspoon kosher salt
• ¼ teaspoon black pepper cracked
• 2 tablespoons vegetable oil I used olive
• 6 green leaf lettuce or iceberg lettuce, singles