Cheesy Chicken and Broccoli Crescent Ring (Weight Watchers-Friendly)

2 cans (8 oz each) refrigerated reduced-fat crescent rolls, separated into 16 triangles
1 cup cooked shredded chicken breast
1 cup finely chopped broccoli florets (steam in the microwave for 1 minute or use frozen and thawed)
4 ounces reduced-fat cream cheese, softened
¼ cup reduced-fat shredded mozzarella cheese
¼ cup reduced-fat shredded cheddar cheese
1 clove garlic, minced
Salt and pepper to taste
1 egg, beaten with 1 teaspoon of water (for egg wash)