Chicken Florentine Cheese Dip

Step 1
Preheat the oven to 350 degrees F (175 degrees C).

Step 2
Heat oil in a large skillet over medium-high heat. Add onion and saute until tender, about 5 minutes. Add mushrooms and continue to cook until they begin to wilt, about 3 minutes.

Step 3
Stir in Italian seasoning, salt, and pepper; cook until moisture from the mushrooms has evaporated, 3 to 5 minutes. Add sun-dried tomatoes and stir thoroughly. Add spinach and stir until incorporated. Remove from the heat and gently stir in cream cheese until melted and creamy.

Step 4
Beat eggs with a whisk in a large glass measuring cup. Whisk in milk. Pour mixture into the skillet and mix until thoroughly combined. Stir in mozzarella and Parmesan cheeses; it's okay it they do not melt. Stir in chicken. Spread mixture in a 2-quart glass baking dish and sprinkle with up to 1/2 cup mozzarella, if desired.

Step 5
Bake in the preheated oven until beginning to bubble near the middle, 20 to 30 minutes. Remove from the oven and transfer the hot dip to a serving dish.