Three-cheese Rice Quiche

Ingredients

• chopped onion
  ½ cup
• vegetable oil
  1 tablespoon
• cooked rice
  2 cups
• fresh tomato

  chopped, drained, divided
  1 medium
• salt and ground black pepper
  1 unit
• chopped cooked spinach
  1 cup
• diced cooked ham
  ½ cup
• shredded Swiss cheese
  ½ cup
• shredded mozzarella cheese
  ½ cup
• eggs

  beaten
  5 unit
• light cream
  ⅔ cup
• seasoned salt
  ½ teaspoon
• ground nutmeg
  ¼ teaspoon
• ground red pepper
  ⅛ teaspoon
• grated Parmesan cheese
  ¼ cup