3 spinach smoked gouda gratin Recipes

frozen leaf spinach, not chopped, butter, chopped shallots, all-purpose flour, low-fat milk, salt, pepper, cayenne chili pepper flakes, smoked gouda cheese, shredded (1 1/2 cups ), egg whites

unsalted butter or 2 tbsp unsalted margarine, all-purpose flour, whole milk, heavy cream, smoked gouda cheese, coarsely shredded, smoked paprika (optional), nutmeg, freshly grated, salt, fresh ground pepper, water, baby spinach, lemon , juice of (not the bottled kind, please!), extra virgin olive oil, onion, finely chopped, smoked gouda cheese , bechamel, salt, fresh ground pepper, fine dry breadcrumbs, smoked gouda cheese, coarsely shredded