Flank Steak Fajitas

1- 1 1/2 lbs. flank steak
1 chopped, seeded green pepper
1 chopped jalapeno pepper
1 TBS. cilantro
1 clove garlic
1 tsp. chili powder
1 tsp. cumin
1/2 tsp. salt
1 (8oz.) can chopped tomatoes
12 flour tortillas- taco size

Cut flank steak into 6 portions, cutting against the grain. Place sliced steak and remaining ingredients into a crockpot. Stir. Cover and cook on low for 8- 10 hours or on high 4-5 hours. Remove meat from crockpot and shred. Return meat to crockpot and stir. Let sit 15 minutes and serve in flour tortillas. Top with sour cream, guacamole, shredded cheese, salsa, etc!