Crustless Spinach Quiche

Bahan-bahan (6 porsi)

• 1 Tbsp . vegetable oil
• 1 medium onion (about 1 cup), chopped
• 1 tsp . minced garlic
• 1 (10 ounce) package frozen chopped spinach, thawed and drained
• 5 large eggs, beaten
• 2 1/2 cups muenster cheese, shredded (or use whatever’s on hand)
• 1/4 cup grated parmesan cheese (plus 2 Tbsp. more for garnish – optional)
• 1/4 tsp . salt
• 1/4 tsp . freshly ground black pepper
• pinch of crushed red pepper