Chicken Souvlaki and Tzatziki

Name: Chicken Souvlaki and Tzatziki
Ingredients: ½ cup olive oil; ⅓ cup lemon juice; 1 tablespoon red wine vinegar; 2 tablespoons Greek salad seasoning (or 2 teaspoons each dried oregano, thyme, and mint); 2 pounds chicken breast (I like to slice it into tenders but they can be kept whole as well); 2 cups plain yogurt; 1 cucumber, grated on medium side of box grater and strained of extra liquid; 2 teaspoons finely chopped dill; 1 teaspoon tzatziki seasoning or garlic powder (optional); Salt and pepper