Black Bean Tacos w/ Avocado Cilantro Lime Sauce

Ingredients
Two 15 oz. cans black beans
1 cup salsa (restaurant-style or other)
1 tsp. cumin
Corn tortillas
Toppings of your choice: lettuce, tomato, onion, roasted red peppers, corn, avocado, cilantro, etc.

{For the sauce}
1/2 ripe avocado
3/4 cup cilantro, stems removed
Juice from 1 lime
1 clove garlic
1 Tbsp. olive oil
1 tsp. agave/honey
1/8 tsp. salt

Directions
Make the avocado sauce: in a food processor or blender, add all sauce ingredients and blend. Add a touch of water to thin if necessary, and tweak seasonings as desired. Set aside, or refrigerate if making ahead of time.
In a pan over medium heat, add black beans (rinsed and drained), salsa, and cumin. Heat for about 5 minutes stirring occasionally, until heated through. (Optional: mash beans after heating for a creamier filling.)
While the beans are heating, chop and prepare your toppings. Warm the tortillas if desired.
Assemble the tacos: spoon the black bean mixture in the center of the tortillas, drizzle a small amount of avocado sauce over the top, and add your toppings.