Wash, dry and halve lengthwise the zucchini and arrange in a single layer on a greased broiler pan or hinged grill. Score zucchini diagonally. Melt butter and add lemon-pepper seasoning and garlic salt. Brush on cut side of zuchinni. Sprinkle with cheese. Broil 8 minutes or grill until tender and cheese browns. No need to turn.