Open the can of beans and scoop into a pan. Add the water, and heat on medium low, stirring occasionally. Keep warm on stovetop as you prep the fixings.
Spread out the tacos toppings for serving: place the greens, cheese pepper and salsa out on counter or table.
Preheat oven to 400. Spread hard tacos on a baking sheet and cook for 2 to 3 minutes until just browned and crispy.
Heat the soft tacos for 10 seconds each in microwave.
Each person make their own taco by taking a taco shell, adding a scoop of beans followed the toppings they want–cheese, greens, peppers and salsa.