Sunday Slow Cooker: Chicken Cacciatore with Mushrooms

INGREDIENTS

lbs boneless skinless chicken breast, cut into chunks

onion, thinly sliced

celery stalks with leaves, diced

4 tbsp

tomato paste

14 oz

canned diced fire roasted tomatoes

1 lb

mushrooms, sliced

green pepper, chopped

garlic cloves, sliced

1 tbsp

Italian seasoning

1/2 cup

red wine (or chicken broth)

1 1/2 tbsp

capers, drained

1/2 tsp

red pepper flakes

1 cup

black olives (Whole30® approved brand with no additives)