5-Ingredient Mushroom and Caramelized Onion Tart Recipe
This onion tart is richly savory, packed with umami from caramelized onions, mushrooms, mustard, and optional roasted tomatoes. It’s easy to assemble using frozen puff pastry. Cut into squares for a handheld appetizer, or serve with a salad for a light dinner. The filling can be made ahead—bring it to room temperature before filling the … Read more