In a skillet, add butter over medium heat.

Once melted, add garlic and sautee for one minute.

Add flour, whisking to combine with butter and garlic mixture.

Let cook for 1 minute, stirring so it doesn't burn.

Slowly add the milk in ½ cup increments, whisking to fully stir it in with the butter/flour mixture. Adding it slowly and whisking it together will ensure it does not clump.

Once all the milk is added, bring to a simmer.

Lower heat to low and let simmer for about 5-7 minutes, until it begins to thicken.

Add gnocchi, and let simmer for another 7-10 minutes, stirring occasionally. During this time, the gnocchi will cook and the sauce will thicken more.

Once sauce is to your preferred consistency, add about ¾ of the mozzarella and season with salt and pepper. Stir to mix the mozzarella and salt/pepper in with the sauce.

Top with fresh basil, tomatoes, and remaining mozzarella.

Serve and enjoy!