Tiny Greek Beef Tarts

Ingredients

• 12 ounces Ground Beef (93% lean or leaner)
• 1/2 cup chopped onion
• 1 teaspoon minced garlic
• 3/4 cup chopped seeded tomato
• 1/2 teaspoon dried oregano leaves
• 1/4 teaspoon salt
• 1/8 teaspoon pepper
• 2 packages (2.1 ounces each) frozen mini phyllo shells (30 shells total)
• 1/2 cup crumbled feta cheese

Cucumber-Yogurt Sauce:

• 1 container (6 ounces) plain lowfat yogurt
• 1/4 cup finely chopped seeded cucumber
• 1 teaspoon minced garlic

Toppings:

• Slivered Kalamata olives, prepared hummus (optional)