Mexican-style veggie skewers are a fiesta of flavors. Chop a variety of vegetables such as bell peppers, red onions, zucchini, and corn on the cob into bite-sized pieces. In a small bowl, mix together chili powder, cumin, paprika, garlic powder, onion powder, salt, and lime juice. Toss the vegetables with olive oil and the spice mixture until well coated. Thread the vegetables onto skewers and grill them over medium-high heat for about 10-15 minutes, or until they are tender and slightly charred. Serve the Mexican-style veggie skewers with a side of guacamole, salsa, and warm tortillas for a delicious and satisfying meal.