1 can of black beans, drained and rinsed (I prefer buying dried and soaking them for 24 hours and cook them for 2 hours)
1/4 cup minced red onion
Small handful of cilantro, chopped
8 butter lettuce leaves (these make really nice cups, romaine works as well)
Sea salt and red pepper flakes (optional)
Mash beans and red onion together in a bowl, stir in chopped cilantro.
Spoon into lettuce cups and top with diced avocado and a squeeze of lime juice.
Season with salt and red pepper flakes.