Fontina Cheese
Fontina is a semi-soft cow's milk cheese with a nutty, buttery flavor and good melting behavior. It is useful in baked pasta, sandwiches, gratins, and other dishes where smooth melted cheese matters.
Identity
Melting cheese
Brings a nutty flavor and smooth melt.
Grate or thinly slice fontina so it melts evenly. Its richer flavor can stand in for mild melting cheeses when the dish can handle a little more character.
Wikimedia Commons
Reference image
Fontina Cheese reference image.

Source: Wikimedia Commons
Used In Recipes
Substitutions
Acceptable
Fontina Cheese -> Low-moisture Mozzarella
2 cups (5 ounces) shredded fontina cheese or low-moisture, part-skim mozzarella
The source lists this as an alternative in the same ingredient row.
Source: Spinach Artichoke Lasagna