Grilled Veggie Kebabs

Name: Grilled Veggie Kebabs
Cuisine: American
Ingredients: 2 tablespoons extra-virgin olive oil; 2 tablespoons lemon juice or pineapple juice; 1 tablespoon soy sauce or soy sauce alternative (see Recipe Notes); 1 clove garlic, minced; ¼ teaspoon ground ginger; 16 cherry tomatoes; 16 white button mushrooms, stems removed; 1 red or green bell pepper, cut into 2-inch pieces (about 1 cup); 1 yellow or orange bell pepper, cut into 2-inch pieces (about 1 cup); 1 cup chopped onion, cut into 2-inch pieces; 1 cup zucchini, cut into 2-inch pieces