If you have leftovers, store them in an airtight container at room temperature for 1-2 days. To reheat, place the slices in the oven at 350°F (175°C) for about 5-7 minutes, or until crispy and warm.
For longer storage, wrap the garlic bread tightly in plastic wrap and foil, and freeze for up to 1 month. Reheat in the oven from frozen, adding a few extra minutes to the cooking time.
Variations:

Herb Infusion: Add dried herbs like oregano, basil, or thyme to the butter mixture for an aromatic twist.
Cheese Lovers: Mix in other cheeses such as cheddar, gouda, or even a sprinkle of feta for a more complex flavor.
Spicy Kick: For a bit of heat, add a pinch of red pepper flakes or some sliced jalapeños before baking.
Gluten-Free: Substitute the regular loaf of bread with a gluten-free variety for a delicious, gluten-free version of this dish.
Vegan: Swap the butter for a plant-based alternative and use dairy-free cheese to make it vegan-friendly.