Preheat the oven to 450 degrees F.
Coat a 9-inch tart pan with cooking spray. Fit piecrust into pan according to package directions.
Bake for 10 minutes or until golden. Remove crust from oven; sprinkle with 1 cup of the cheese blend.
Lower the oven to 375 degrees F.
Saute leeks in hot oil in a skillet over medium-high heat until tender; sprinkle over crust. Arrange tomatoes over leeks; sprinkle with basil and garlic.
Stir together remaining 1 cup cheese blend, chopped bacon, and next 4 ingredients in a bowl. Spoon cheese mixture over tart, spreading to edges.
Bake for 25 minutes or until golden. Cut tart into 4 slices. Garnish, with basil sprigs, if desired.
A viewer or guest of the show, who may not be a professional cook, provided this recipe. It has not been tested for home use.