• 2 teaspoons extra virgin olive oil
• 1 small onion, finely chopped
• 1 medium bell pepper, any color, finely chopped
• 2 cloves garlic, minced
• ½ cup corn, optional; thawed if frozen
• 2 15.5 oz. cans black beans, rinsed and drained and lightly mashed (it's OK to have a few beans left whole)
• 1 lime, zest and juice, divided
• 1 teaspoon chili powder
• ½ teaspoon ground cumin
• ½ teaspoon salt
• ¼ teaspoon black pepper

For serving:

• lettuce wraps, tortillas, pita bread or regular burger buns

Optional toppings:

• shredded cheddar or Monterey Jack cheese, salsa or chopped tomatoes, diced or sliced avocado, chopped fresh cilantro, sour cream or Greek yogurt, hot sauce