3 smashed tomato gratin Recipes

yellow-fleshed potatoes such as yukon gold, milk, unsalted butter, kalamata olives, scallions, garlic clove, fresh parsley leaves, fresh bread crumbs, freshly grated parmesan (about 1 1/2 oz), vine-ripened red or yellow tomatoes (about 7 medium)

halibut , cut into pieces, extra large white onion, cut into rounds, leeks, cut into rounds, saffron, tomatoes, cut in rounds, olive oil, chicken broth, bay leaf, thyme, garlic cloves, smashed