Roasted Vegetable and Black Bean Tacos

Bahan-bahan (12 porsi)

• 1 medium (about 1 cup) yellow squash, (chopped into small chunks)
• 1 medium (about 1 cup) zucchini, (chopped into small chunks)
• 1 small (about 1 cup) onion, (chopped)
• 1 medium (about 1½ cups) red bell pepper, (de-seeded, ribs removed and chopped)
• 1 medium (about 1½ cups) sweet potato or yam, (peeled and chopped)
• 1 tablespoon olive oil
• kosher salt and freshly ground black pepper, (to taste)
• One 15-ounce can black beans, (drained and rinsed)
• One 10-ounce can original Ro-Tel ((tomatoes + chiles))
• 1 teaspoon ground cumin
• ½ teaspoon smoked paprika
• ½ teaspoon garlic powder
• ½ teaspoon dried oregano
• ½ teaspoon sea salt
• ¼ teaspoon freshly ground black pepper
• 12 taco-sized corn tortillas
• canola or vegetable oil
• suggested add-ins: avocado, cotija or feta cheese, lettuce, sour cream)