Prepare the Delallo Gnocchi Kit according to the package instructions; drain if directed and set aside.
Preheat the oven to 350°F (175°C).
Heat a large oven-safe skillet over medium heat and add the olive oil until shimmering.
Add the minced garlic and cook 1–2 minutes until fragrant, stirring so it does not burn.
Pour in the crushed tomatoes, then add the salt, black pepper, and Italian seasoning; stir and bring to a simmer.
Reduce the heat to low, stir in the grated Parmesan, then add the cooked gnocchi and combine until evenly coated with the sauce.
Sprinkle the shredded mozzarella evenly over the gnocchi, then arrange the pepperoni and top with the sliced whole milk mozzarella.
Bake in the preheated oven for 25–30 minutes, or until the cheese is melted and bubbly and the top is lightly golden.
Remove from the oven, garnish with fresh basil, let rest a few minutes, then serve.
