3 oz. cod (skinless), 1½ tbsp. butter (melted), ¼ c. snow peas, 2 cherry tomatoes (halved), ⅓ c. baby spinach (chopped), 2 baby corn (sliced lengthwise), 2 slices lemon, 2 tsp. olive oil, 1 tbsp. parsley (chopped), salt, and pepper.