Spray counter lightly with non-stick cooking spray. Combine 6 rolls together and roll into an 10-inch circle. Cover with plastic wrap and let rest about 10 minutes. Repeat the above steps with remaining 6 rolls.
Remove wrap from dough circles and place one circle in a sprayed 9-inch round baking pan covering the bottom and 1/2-inch up the sides.
Spread thousand island dressing evenly over dough. Top with 1/2 of the cheese. Arrange the pastrami evenly over the cheese. Top with sauerkraut and sprinkle with remaining cheese.
Place remaining dough circle over the top and pinch the edges together to seal to the bottom dough circle.
Brush with olive oil and sprinkle with caraway seeds. Cut 2-3 vents in the center.
Bake at 375°F 35-40 minutes. Cover with foil last 10 minutes, if necessary, to prevent over browning.