Begin the recipe by placing a large skillet over medium-high heat on the stovetop. Add the 1 tablespoon olive oil and once heated, add the peeled and cubed sweet potato (1 to 1 ½ cups) and ½ teaspoon salt.
Allow it to cook, stirring often, for about 4 to 5 minutes. The sweet potato should be slightly fork tender. Remove the sweet potato from the skillet into a medium size bowl and set aside.
To the same skillet over medium-high heat, add in the ¼ cup diced onion and 1 clove minced garlic and stir until it becomes fragrant, about 1 minute.
Add in the 3 ounces ground chorizo. Using a wooden spoon to break it into smaller crumbles, cook for 4 to 5 minutes. The chorizo should begin to brown and the fat is rendered.
To the cooked chorizo, add back in the sweet potato along with the 1 cup baby spinach. Stir to combine. I prefer to use a wooden spoon to mash the sweet potato ever so slightly, binding the mixture together. Cook until heated through, about 1 to 2 minutes.
Preheat the oven to 350 degrees F. and grab a square baking dish. Pour half (5 ounces) of the enchilada sauce into the bottom of the baking dish. Spread evenly.
Lightly spray each side of the 6 corn tortillas with cooking spray and add to the microwave for about 20 to 30 seconds to make them pliable. Remove them from the microwave and place a tortilla in the baking dish and coat both sides in the sauce before adding a heaping tablespoon of the sweet potato mixture into the center.
Roll the tortilla around so that the seam is facing down in the pan. Continue this process with the rest of the tortillas and mixture until finished.
Top the enchiladas with the other half (5 ounces) of the enchilada sauce. Evenly spread the ½ cup shredded cheddar cheese over the top. Place into the oven and bake for 10 to 15 minutes, until the cheese is melted and bubbly.
Carefully remove from the oven and serve warm with your favorite toppings of choice like fresh cilantro, pickled red onions, avocado, diced tomatoes, sour cream, etc. Enjoy!