Veggie Tostadas

Ingredients

• 2 (10-inch) 98% fat-free flour tortillas
• 1 (16-ounce) can fat-free refried beans
• 2 tablespoons enchilada sauce
• 2 cups gourmet salad greens, divided
• 1 cup diced plum tomato, divided
• 1/4 cup chopped green onions, divided
• 2 tablespoons sliced ripe olives, divided
• 1 peeled avocado, cut into 12 wedges, divided
• 1 tablespoon finely chopped bottled jalapeno pepper, divided
• 1/4 cup (1 ounce) crumbled reduced-fat feta cheese, divided