Cauliflower and Caramelized Onion Tart (Lighter Version)

Ingredients

• cooking spray
• 1 head cauliflower, steamed, cut into 1-inch florets (medium sized, about 1 1/2 pounds)
• 1 1/2 tablespoons olive oil
• 1 large onion, halved lengthwise, thinly sliced
• 1/2 cup egg substitute or 2 eggs
• 1 tablespoon Dijon mustard
• 1 cup low fat cottage cheese or ricotta cheese
• 1/2 cup reduced-fat milk
• 1/4 teaspoon white pepper
• 1 pinch ground nutmeg
• 1 cup grated low-fat swiss cheese
• 3/4 cup grated parmesan cheese

Directions

1. 1

   Prepare a 9-inch-diameter tart pan with cooking spray.

2. 2

   Heat olive oil in heavy large skillet over medium heat. Add onion; sprinkle with salt and pepper. Cook until onion is deep golden brown, stirring occasionally, about 40 minutes. Cool slightly.

3. 3

   Preheat oven to 350°F.

4. 4

   Spread onion in pan. Arrange cauliflower over evenly. Set tart on rimmed baking sheet.

5. 5

   Whisk eggs and next 5 ingredients in medium bowl. Stir in Gruyère. Pour mixture over filling in tart pan; sprinkle with Parmesan. Bake until tart is golden and center is set, about 40 minutes.

6. 6

   Transfer to rack; cool 15 minutes before serving.