Choose salmon with skin on to keep it moist and flavorful. Cut potatoes uniformly for even roasting. Fresh garlic is preferred but garlic powder can be used. Avoid overcrowding the sheet pan for crispy results. Check doneness by flaking salmon with a fork. For extra crispiness, broil salmon 1-2 minutes at the end carefully. Variations include swapping green beans with other vegetables, adding chili flakes, using different herbs, or changing starches.