Preheat grill and gather ingredients.
Add stick of butter to mixing bowl.
Add minced garlic.
Add Italian seasoning.
Add black pepper.
Add lemon juice.
Mix together until incorporated.
Add chopped zucchini.
Toss until everything is coated.
Place zucchini in STOK Grill Vegetable Tray Insert.
Heat over grill until charred on both sides. 2 minutes per side.
Plate the zucchini and serve immediately.