Heat a 10-inch skillet over medium heat and add 3 tablespoons of the butter until melted.
Add the minced garlic and cook, stirring constantly, about 30–60 seconds until fragrant and lightly golden—do not let it burn.
Add the uncooked shelf-stable gnocchi to the skillet in a single layer if possible and fry, stirring every 2–3 minutes, until the gnocchi are golden and crisp on most sides, about 12–15 minutes total. Reduce heat if they begin to burn.
Lower the heat to low and add the remaining butter, lemon zest, Italian seasoning, crushed red pepper flakes (to taste), cracked pepper and sea salt; toss to coat and melt the butter.
Remove the pan from heat and stir in the Parmesan until combined.
Let the gnocchi rest for a few minutes, then serve topped with chopped parsley and extra Parmesan if desired.