Slow-cooked onions, flavored with fresh herbs and topped with Asiago cheese and walnuts, make a perfect filling for these appealing pastry appetizers.
Substitute finely shredded Gruyère cheese for Asiago cheese.
Get a head start on making these tartlets by caramelizing the onions ahead of time.
Creamy Chicken Marsala Pizza
Caramelized Red Onion-Feta Burgers
Bistro-Style Onion and Artichoke Galette
Apple-Jack Chicken Pizza with Caramelized Onions
Mushroom-Garlic Cream Tartlets
Upside Down Tomato Basil and Chicken Tartlets