Add the minced garlic and diced onion to a large skillet with 1 teaspoon of olive oil
Sautee for 7-10 minutes, or until onion is translucent and softened
Add to the skillet the drained black beans, roasted sweet potatoes cubes, juice of 1 lime, cumin, chili powder, and salt to taste (I used an additional 1/2 teaspoon as noted above)
Warm the tortilla shells for 10 - 15 seconds before assembling. This will help avoid any breakage.
Spray a 9 by 13 baking dish with cooking spray
Fill each tortilla with the sweet potato black bean filling, then roll it up and place seam side down in the prepared baking dish
Pour enchilada sauce evenly over the top of the enchiladas
Add any leftover filling to the tops of the enchiladas, then cover with the fresh grated colby jack cheese
Bake at 350 degrees for 25 - 35 minutes, or until cheese is bubbly and enchiladas have crisped on the edges. I like to also broil mine for a minute or two at the end to really get that browned cheesy goodness on top.
Serve with avocado slices, lime wedges, and sour cream