If it is difficult to find traditional gyro meat where you live,
consider substituting grilled chicken.

Although it doesn’t taste anything like gyro meat,
it can be an interesting variation.

4 Greek pita bread rounds
1 recipe Greek tzatziki
1 recipe grilled chicken of choice
1 large onion, chopped
2 medium tomatoes, diced
Crumbled feta cheese
Dried Greek Oregano

Instructions on How to Make Grilled Chicken Gyros:
Make the pita bread and tzatziki according to the recipe instructions,
unless you’re buying these two ingredients in the store. 
Prepare the grilled chicken according to the recipe. 
Cut the chicken into pieces.

Place a piece of aluminum foil down on a flat surface. Put a piece of 
bread in the center of the foil. Spread a generous amount tzatziki onto
the pita bread. Top with chopped onion and tomato and then add the 
grilled chicken. Sprinkle with feta cheese and drop another spoonful of
tzatziki over the top, if desired. You can also 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.