In a skillet melt 4 tbsp butter. Add your minced garlic, shallot, and red pepper flakes.
Cook for 1 minute until fragrant.
Chop up spinach and throw into the skillet.
Cook the spinach down and when it is done, remove from the heat.
In a separate bowl, add bread crumbs and parmesan cheese. Toss in your spinach garlic butter mixture. Stir until it is a slightly wet sand consistency.
Take out your potatoes and heat the oven to 450. Add your shredded mozzarella to the potatoes and your bread topping.
Pop your potatoes into the oven for another 5-7 minutes until the cheese is melted and crumbs are golden brown. Squeeze with a little lemon juice and enjoy!