Tomatillo Black Bean Tostadas

Ingredients (15)

• 1 pound tomatillos, chopped (about two heaping cups of chopped tomatillos)
• 1 small shallot (an entire bulb), finely chopped
• 2 to 3 cloves garlic, minced
• 1 jalapeño, seeded and minced
• ½ cup cilantro, chopped
• 1 small lime, juiced
• 1 cup cooked black beans, rinsed and drained
• Salt and black pepper, to taste
• 8 corn tortillas (make sure they're 100% corn so they'll get crispy)
• Cooking spray or additional olive oil
• 1 tablespoon extra-virgin olive oil
• 2 cans (15 ounces each) black beans, or 3 cups cooked black beans, cooking liquid reserved
• Hot sauce of your choice
• Red pepper flakes (optional)
• Toppings: crumbled feta cheese (highly recommended), diced avocado, sour cream or plain Greek yogurt, red pepper flakes and/or more cilantro.