Whole baked fish might sound like a daunting task for dinner, but it is actually quite easy to pull together. This recipe is inspired by the French Provance. A bed of sliced onions, garlic, potatoes, and tomatoes make for a hearty and delicious base. Once this base is set, lemon stuffed fish tops it before it all gets briefly baked in the oven. This dish is great in the summer when tomatoes are at their peak ripeness.