Preheat your oven to 375°F (190°C).

In a large skillet, heat a tablespoon of olive oil over medium heat. Add diced onion and sauté until translucent, about 5 minutes. Stir in minced garlic and sauté for an additional minute until fragrant.

Increase heat to medium-high and add ground beef. Season with salt, pepper, and Italian seasoning, cooking until fully browned, about 7-10 minutes.

Stir in tomato paste, mixing well for about 1-2 minutes. Then add crushed tomatoes and let simmer for 10 minutes.

In a separate pot, bring water to a boil and cook the gnocchi according to package instructions, about 2-3 minutes until they float. Drain and set aside.

In a large baking dish, combine cooked gnocchi with the bolognese sauce. Sprinkle mozzarella and parmesan cheese on top.

Transfer to the preheated oven and bake for 20-25 minutes, or until cheese is bubbly and golden brown. Broil for an extra crispy top if desired.

Once baked, cool for about 5 minutes, garnish with fresh herbs if desired, and serve warm.