Pat the chicken dry and season it with 2 teaspoons of kosher salt and 1 teaspoon of black pepper.
Preheat the oven to 400ºF.
Heat 2 teaspoons neutral oil in an ovenproof pot over medium-high heat. Add the chicken, skin-side down, in an even layer and cook without moving for 5 minutes until golden brown on the bottom. Once the chicken releases easily, flip it and cook for an additional 2 minutes. Transfer to a plate, leaving any fond in the skillet.
Sauté the aromatics:
Add the diced onion to the pot and cook for 5 to 7 minutes until soft. Add the garlic and sauté for 1 minute until fragrant.
Add the canned white beans and 1 cup chicken stock. Bring to a boil. Taste and add salt and pepper if needed.
Roast the chicken:
Arrange the chicken on top of the beans. Turn off the heat and transfer to the oven for 30 to 35 minutes or until the chicken reaches 165°F.
Cook the pastina:
Bring a large pot of salted water to a boil. Cook the pastina according to package directions. Drain and set aside.
Finish the creamy pastina:
Remove the chicken from the oven and transfer the chicken to a plate.
Return the pot of beans to a rapid simmer over medium heat. Add the cream, cooked pastina, lemon juice, frozen peas, and fresh dill. Simmer for 5 minutes until the peas are bright green. Taste and add salt and pepper.
To serve:
Arrange the cooked chicken on top of the creamy pastina. Serve with more fresh dill and lemon wedges. Enjoy!