Step 1
Preheat the oven to 400 degrees F.
Step 2
On lightly floured surface gently roll out each pastry sheet to 10-by-12 inches.
Step 3
Cut each sheet into 30 2-inch squares ending with a total of 60 squares (a pizza cutter works great for this).
Step 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.
Step 5
Transfer pastry squares to 2 parchment-lined baking sheets and put into the refrigerator.
Step 6
Melt butter in large skillet over medium heat.
Step 7
Add onions to pan and cook for 2 minutes or until onions are translucent.
Step 8
Stir in sugar flour salt and pepper and cook stirring constantly for 1 minute.
Step 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.
Step 9
Take pastry squares out of refrigerator and top each one with a small spoonful of the green bean mixture and shredded cheese.