Healthy tacos made with seasoned black beans, a corn salsa, fresh avocado, and a delicious cilantro "pesto." Made with wholesome, good-for-you ingredients, these are the BEST healthy tacos ever! These tacos are vegetarian, but trust me, you won't be missing the meat!
Alternative #1: use pre-roasted canned corn -- drain and allow to dry. Alternative #2: use frozen corn -- place in a preheated large cast-iron skillet (cast iron chars better and won't ruin your pan) 3 to 5 minutes, stirring once or twice, until kernels are lightly charred. Avoid stirring too often as this will keep the corn from getting a good roast. Alternative #3: Grill some fresh corn on the cob and cut it from the cob.
Combine COMPLETELY cooled corn with chopped cilantro, thinly sliced radishes, jalapeno pepper, a generous pinch of salt and pepper (add to taste; I add about 1/4 teaspoon each), 1 tablespoon olive oil, 2 tablespoons fresh lime juice, and 1 teaspoon lime zest. Stir, adjust seasoning to taste, and let stand to marinate while preparing the rest of the tacos.
In the same skillet used for the corn, add the remaining 1 tablespoon olive oil. Add in the chopped onion and saute for 3 minutes over medium high heat. Add in the garlic and stir for another 30 seconds. Add in the drained and rinsed black beans, salsa, chili powder and cumin. Simmer mixture for about 5 -10 minutes, stirring occasionally. Slightly mash half of the beans if desired. Season to taste with salt and pepper.
Add all the ingredients except the olive oil and pulse in a blender until combined. Once it is all combined, add olive oil and pulse a few times quickly until combined. (Over mixing olive oil can create a metallic taste, so it is important to add the olive oil in last.) Season to taste with salt and pepper (I use about 1/2 teaspoon salt and 1/4 teaspoon pepper).
Char/grill/warm tortillas and add a generous amount of the black beans mixture followed by the corn topping, some fresh avocado (or guacamole), and a spoonful of the pesto. If desired, add cheese, additional chopped cilantro, and fresh lime juice. Enjoy as soon as assembled
*If you're sensitive to shallot/onion flavor, reduce to 1 tablespoon (or less); increase to 3 tablespoons if you love the flavor.