Creamy Black Bean Tostadas

For the Cream Beans:

black beans, rinsed and drained

plain nonfat Greek yogurt

small can diced green chiles

chopped cilantro

garlic

cumin

salt and pepper

For the meat:

ground chicken, ground turkey, or ground beef

Taco seasoning or chili lime seasoning

corn tortillas

Toppings:

chopped romaine lettuce

diced avocado

diced cherry tomatoes

fresh limes

cilantro

shredded cheese or crumbled queso fresco