Spinach, Caramelized Onion and Gruyere Quiche

Ingredients

• 1 Prepared pie crust, frozen
• 1 Onions, medium, chopped
• 3 oz Cheese, Gruyere, shredded (sub Swiss)
• 1 Tbsp Butter
• 1 Tbsp + 1 Tbsp Oil, cooking
• 2 tsp Thyme leaves, fresh
• 4 Eggs
• 1 cup Half and half
• 1/2 tsp Salt
• 1/4 tsp Black pepper
• 1/8 tsp Nutmeg, ground (opt)
• 5 oz Baby spinach
• 1 Tbsp Vinegar, balsamic
• 1 tsp Lemon juice
• 1 tsp Mustard, Dijon
• 1 tsp Honey
• 3 Tbsp Oil, olive
• 6 oz Mixed greens (sub any salad greens)