Preheat grill to medium-high heat.
If using wooden skewers, soak them in water for 5 minutes.
Wood or metal skewers
In a bowl, combine homemade salsa, olive oil, lime juice, hot pepper sauce, cumin and chili powder; season with salt and pepper to taste.
¼ cup homemade salsa, ¼ cup olive oil, Juice from 1 lime, 2 tbsp. hot pepper sauce, 2 tbsp. chili powder, ½ tbsp. cumin powder, Sea salt and freshly ground black pepper
Layer the skewers with steak, bell peppers, red onion, and zucchini.
2 lbs top sirloin steak, 2 bell peppers, 1 red onion, 1 zucchini
Brush the skewers with the Mexican-style seasoning sauce, making sure the skewers are well covered.
Place on the grill and cook for about 10 to 12 minutes, turning every 3 to 4 minutes.