Black Bean and Chicken Tacos

Oh these are so yummy!
2 chicken breast --cooked and cubed
4 tsp. lime juice
2 T. olive oil,divided
4 green onions,thinly sliced
2 cloved garlic, crushed
1-15 oz. can black beans, drained and rinsed
1 c. Fresh tomatoes diced
1 tsp salt
pinch of cayenne pepper
flour tortillas
1/2 c. Monterey jack cheese
sour cream
Coat cubes of chicken with 1/2 limejuice and 1/2 of the oil. Saute in pan until warm. Remove chicken and using the same pan add the rest of the oil and saute garlic and green onions until tender; add beans and tomatoes until warm. Then add the remaining lime juice, salt and chicken. Cook until heated through, then add cayenne pepper to taste. Fill tortillas with chicken and add sour cream and cheese for garnish.