Crock Pot Pineapple & Black Bean Chicken Tacos

boneless, skinless chicken breasts (about 1 1/2 lbs)

crushed pineapple, do not drain

salsa

green onions, chopped

juice and zest of 1 lime (about 2-3 tablespoons juice)

chili powder

garlic powder

cumin

salt

pepper

black beans, drained and rinsed

corn or flour tortillas + taco toppings