• 2 medium sirloin steaks cubed
• 1 red bell pepper de-seeded and white part removed, and cut into squares
• 1 orange bell pepper de-seeded and white part removed, and cut into squares
• 1 yellow bell pepper de-seeded and white part removed, and cut into squares
• 1 red onion sliced

For the marinade:

• ¼ cup olive oil
• juice of 1 lime
• 2 teaspoons chili powder
• 1 teaspoon cumin
• 3 cloves garlic
• ½ teaspoon salt
• Metal skewers