Greek Pasta Salad

1 1/2 cups plain yogurt

1 1/4 teaspoons McCormick® Gourmet Collection Mint Flakes

1 1/4 teaspoons McCormick® Oregano Leaves

1 teaspoon McCormick® Garlic Powder

3/4 teaspoon McCormick® Black Pepper, Ground

2 large tomatoes, cut in cubes

1 cucumber, halved lengthwise and thinly sliced

3/4 cup pitted Kalamata or black olives, sliced

4 ounces feta cheese, crumbled

1 tablespoon olive oil