Season the chicken (3 min): Preheat the oven to 400°F. Add the cubed chicken to a large baking dish. Drizzle with the olive oil and toss with the Italian seasoning, lemon zest, kosher salt, garlic, black pepper, and cornstarch until the chicken is evenly coated.
1 1/2 lbs chicken breast, 1 Tablespoon olive oil, 1 teaspoon Italian seasoning, 1 Tablespoon lemon zest, 1 teaspoon kosher salt, 2 cloves garlic, ½ teaspoon fresh cracked black pepper, 1 Tablespoon cornstarch
Add the broth, gnocchi, and ricotta (2 min): Add the gnocchi to the pan and gently toss everything together. Pour the chicken broth over the top, then dollop the ricotta evenly across the dish.
1 lb potato gnocchi, 1 1/4 cups chicken broth, 8 oz whole milk ricotta cheese
Bake (20 min): Cover tightly with foil and bake for 20 minutes, until the chicken is cooked through and the gnocchi are tender.
Stir and bake again (5 min): Remove from the oven and stir everything together so the ricotta melts into the broth and creates a creamy sauce. Stir in the parmesan cheese, lemon juice and spinach, if using. Return to the oven uncovered and bake for 5-7 more minutes, until bubbly and golden brown in spots.
½ cup grated parmesan cheese, 2 Tablespoons lemon juice, 2 cups baby spinach
Finish with fresh cracked black pepper, more parmesan, basil, and a pinch of red pepper flakes before serving.