Ingredients

Cooking spray $

3 1/2 cups chopped onion $

2 ounces Gruyère cheese, shredded and divided

2 tablespoons chopped fresh chives, divided

1/3 cup canola mayonnaise $

1/3 cup fat-free sour cream $

1/4 teaspoon salt $

1/4 teaspoon black pepper

3 bacon slices, cooked and crumbled $

Preparation

  1. Preheat oven to 425°.

  2. Heat a large cast-iron skillet over medium-high heat. Coat pan lightly with cooking spray. Add onion to pan; sauté 5 minutes, stirring frequently. Reduce heat to low; cook 20 minutes or until golden brown, stirring occasionally. Cool slightly.

  3. Reserve 2 tablespoons cheese. Combine remaining cheese, caramelized onion, 1 tablespoon chives, and the remaining ingredients in a medium bowl. Transfer the mixture to a 1-quart glass or ceramic baking dish coated lightly with cooking spray. Sprinkle with reserved 2 tablespoons cheese. Bake at 425° for 20 minutes or until browned and bubbly. Sprinkle with remaining 1 tablespoon chives.