Falafel Gyro

Ingredients:

4 Pita Rounds
Tzatziki
1 large onion, chopped
2 medium tomatoes, diced
Crumbled feta cheese
12 prepared falafel balls, reheated if desired
Dried Greek Oregano

Place a piece of aluminum foil down on a flat surface and lay a piece of pita bread in the middle. 
Spread a generous amount tzatziki onto the pita bread. 
Top with chopped onion, diced tomato and then add 4 of the falafel balls. 
Sprinkle with feta cheese and drop another spoonful of tzatziki over the top, if desired. 
Sprinkle some oregano over all the ingredients.

Roll the gyro sandwich and wrap it in aluminum foil so it can hold the shape. 
Repeat until you've used up all the bread.