The combination of cilantro, red peppers and caramelized onion make this one mean burger. The El Hefe Burger lives up to it's name.
Dice 1/4 of the onion into small cubes. Heat up a frying pan with olive oil over medium-high heat and saute onion until golden and caramelized.
Chop 1/2 of a red pepper into small cubes and place in a medium bowl. Finely chop 1/2 cup of cilantro and add to bowl. Add remaining ingredients: ground beef, egg, salt, pepper and caramelized onion.
Mix ingredients together and form 2 large patties.
Grill on BBQ to medium/medium-well. Top with cheddar cheese, lettuce and tomatoes.