2 pounds beef tenderloin or boneless leg of lamb cut into 1-inch cubes
2 medium zucchini, sliced
1 cup cherry tomatoes
One quarter cup lemon juice
One third cup red wine vinegar
One half cup olive oil
1 Tbsp. dried oregano
4 cloves garlic, minced
Salt and pepper to taste

Place meat, zucchini and tomatoes in a glass bowl. Combine remaining ingredients and pour over meat and vegetables. Marinate for about 1 hour. Pour meat, vegetables and marinade into skillet and saute until meat is cooked, about 5 to 10 minutes depending on your desired degree of doneness. Serve over rice with tzatziki sauce.

Tzatziki Sauce

2 cups plain yogurt
1 large seedless cucumber, peeled and shredded
One quarter cup lemon juice
3 cloves garlic, minced
Salt and pepper to taste

The Skinny: Use fat free yogurt