Remove & top with shredded cheese.
Serve hot or let cool, wrap individual in plastic wrap and freeze until ready to use.
To freeze, wait until cool, then wrap each individually in plastic wrap. Store in freezer. When ready to brown bag it for breakfast, take 1 or 2 out of freezer, unwrap, place on plate and heat in microwave for 45-60 seconds or until hot.
Spaghetti Squash option: Cut 1 2-lb. spaghetti squash in half. Place on parchment paper-covered cookie sheet in 350 degree oven and cook 20-25 minutes. Let cool slightly then shred with tines of fork. Mix squash with 1/2 clove garlic and salt & pepper to taste. Take 2 tablespoons or so of squash mixture and line bottom and sides of prepared muffin tin. Press tightly with spoon so it will adhere together. Proceed to fill with bacon/spinach and eggs as directed above. Cook for 10-12 minutes. Sprinkle with cheese and place under broiler for 1-2 minutes. Let cool for a few minutes then loosen with knife and set out to cool.