Fresh Fruit Shell Salad

Ingredients

• 1/2 (1 lb.) pkg. medium shells
• 1 (8 oz.) container plain low-fat yogurt
• 1/4 c. frozen orange juice concentrate, thawed
• 1 (15 oz.) can ???
• 1 large orange, peeled, sectioned and seeded
• 1 c. red seedless grapes, cut into halves
• 1 c. green seedless grapes
• 1 apple, cored and chopped
• 1 banana, sliced