Really Wicked Spinach Artichoke Dip Recipe

2 (14 ounce) cans artichoke hearts

drained and chopped

1 (16 ounce) package frozen chopped spinach

thawed and drained

1 (8 ounce) package cream cheese

softened

1 cup shredded Asiago cheese

1 cup shredded fontina cheese

1 cup Greek yogurt (such as Fage®)

2 teaspoons red pepper flakes

2 tablespoons roasted minced garlic

2 tablespoons ground black pepper