Tomato and Onion Tart Recipe - Pillsbury.com

Ingredients

• 1 tablespoon extra-virgin olive oil or vegetable oil
• 1 tablespoon butter or margarine
• 1 large sweet onion (such as Maui or Walla Walla), quartered, thinly sliced
• 1 crust from 1 box (14.1 oz) refrigerated Pillsbury™ Pie Crusts (2 Count), softened as directed on box
• 1/4 cup grated Parmesan cheese
• 2 medium plum (Roma) tomatoes, thinly sliced
• 1/2 small zucchini, thinly sliced
• 1/4 cup whipping cream
• 1 egg
• 3/4 cup shredded Gruyère or Swiss cheese (3 oz)
• 4 medium green onions, thinly sliced (1/4 cup)