Onion Tart

Ingredients

• 0.3 teaspoon pepper black
• 1 large eggs lightly beaten
• 1 ounce feta cheese crumbled reduced-fat
• 2 tablespoons thyme leaves fresh chopped
• 0.8 teaspoon kosher salt 
• 1 tablespoon olive oil 
• 2.5 pounds onion sliced
• 14.1 ounce pie dough refrigerated (such as Pillsbury)
• 1 ounce swiss cheese shredded reduced-fat

Equipment

• frying pan
• baking sheet
• baking paper
• oven

Directions

1. Preheat oven to 42
2. Heat oil in a skillet over medium-high heat.
3. Add onion, thyme, salt, and pepper; cook 20 minutes, stirring occasionally.
4. Roll dough out on a parchment paper-lined baking sheet.
5. Sprinkle feta cheese in center, leaving a 1 1/2-inch border; top with onion.
6. Sprinkle with Swiss cheese. Fold piecrust border up and over onion mixture, pleating as you go, leaving a 6-inch-wide opening.
7. Combine egg and 2 tablespoons water; brush over dough.
8. Bake at 425 for 25 minutes or until golden. Cool for 10 minutes.