2 ears corn, husked, cleaned and broken crosswise in half
2 medium zucchini, cut lengthwise in half, then cut crosswide into 1-1/2-inch pieces
1 medium red bell pepper, cut into 8 pieces
1 medium red onion, cut into wedges, separated
2 jalapeno chilies, but in half, seeded
2 tablespoons olive oil or vegetable oil
6 roma tomatoes, cut lengthwise in half, seeded
2 teaspoons grated lime peel
2 tablespoons chopped fresh cilantro
1 teaspoon salt
Tortilla chips