Zucchini Rice Squares

Ingredients

• butter or margarine
  1 tablespoon
• chopped onion
  1 cup
• zucchini

  cut into ¼-inch slices (3½ cups)
  1 pound
• uncooked rice
  1 cup
• x 14½-ounce can chicken broth
  1 unit
• grated Parmesan cheese
  ½ cup
• chopped fresh parsley
  ¼ cup
• eggs

  beaten
  2 unit
• hot pepper sauce
  ⅛ teaspoon
• (4 ounces) shredded mozzarella cheese
  1 cup