For the Tzatziki Sauce: Peel the cucumber and scoop out the seeds. Dice the cucumber into small 1/2 inch sized pieces. Place diced cucumber into a strainer placed in the sink or in another bowl and add 1/2 T salt. Mix well. Let salted cucumber mix sit for about 30 min to remove excess water. Take a paper towel and additionally dry off the cucumber a bit more. Add cucumber, peeled garlic, lemon juice, dill and a bit of pepper to a food processor and process until smooth. If excess water is present try to dab it up with another paper towel. Mix in the Greek yogurt and let sit in the fridge for about 1 hour.

For the Brat Gyro: Preheat grill to medium or medium low heat. Grill bratwurst and let them cool. Prepare onions and tomatoes by slicing them into desired sizes. When the brats are cool slice them as thin as you can using a very sharp knife. Assemble the gyro by placing the onions, tomato and sliced brats on the flat bread. Top with homemade tzatziki sauce and feta cheese if desired.