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1
Preheat the oven to 400 degrees F.
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2
On lightly floured surface, gently roll out each pastry sheet to 10-by-12 inches.
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3
Cut each sheet into 30 2-inch squares, ending with a total of 60 squares (a pizza cutter works great for this).
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4
Lightly score each square about 1/8 inch around the edges and prick liberally with a fork. This will keep the pastry from puffing up too much during cooking.
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5
Transfer pastry squares to 2 parchment-lined baking sheets and put into the refrigerator.
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6
Melt butter in large skillet over medium heat.
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7
Add onions to pan and cook for 2 minutes, or until onions are translucent.
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8
Stir in sugar, flour, salt, and pepper and cook, stirring constantly, for 1 minute.
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9
Add sour cream, green beans, and half of cheese to onion mixture and stir until well combined and heated through. Remove from heat and set aside.
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10
Take pastry squares out of refrigerator and top each one with a small spoonful of the green bean mixture and shredded cheese.
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11
Bake in the preheated oven for 7 minutes, remove from the oven. Top each square with a few French fried onions. Return to the oven and continue cooking for an additional 6-8 minutes, until the pastry is puffed and golden. Let sit 5 minutes before serving.
