Lamb Shish Kebabs

Name: Lamb Shish Kebabs
Ingredients: 5 tablespoons olive oil; 4 tablespoons lemon juice; 2 tablespoons chopped onion; 2 teaspoons curry powder; 1½ teaspoons salt; 1 teaspoon coriander seeds; 1 teaspoon ground ginger; 1 garlic clove, chopped; 3 pounds lean, boneless lamb, from the shoulder, leg, or sirloin, cut into 1½-inch cubes; 12 fresh peeled, frozen, or jarred pearl onions (see note); 18 large cherry tomatoes; 18 large white mushrooms, stems removed; Eighteen 1-inch-thick zucchini slices