Zucchini Gratin Dip

1 . Stage

Melt butter in a medium pot over medium heat. Add onion and garlic to the melted butter and saute until onion begins to brown, 5 to 7 minutes.

2 . Stage

Add grated zucchini, water, 3/4 teaspoon salt, Italian seasoning, and pepper. Reduce heat to medium-low and cook, stirring constantly, until zucchini is soft and most of the water has evaporated, about 15 minutes. Sprinkle flour over the zucchini and mix well, trying to avoid flour lumps. Reduce heat to low and cook for 2 minutes.

3 . Stage

Add milk; stir well. Transfer about 1/2 cup of the zucchini mixture to a small bowl; add cream cheese and mix until well blended. Add this back to the pot and cook over low heat until dip begins to thicken, 5 to 10 minutes.

4 . Stage

While dip is cooking, set an oven rack about 6 inches from the heat source and preheat the oven's broiler to low.

5 . Stage

Remove dip from the heat and stir in Parmesan cheese. Taste and adjust salt if needed. Transfer dip to a shallow, oven-safe casserole dish and top with Cheddar cheese.

6 . Stage

Broil in the preheated oven until Cheddar bubbles and starts to brown, 2 to 3 minutes.