Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Place the cherry tomatoes on the baking sheet, drizzle with olive oil, and sprinkle with a pinch of the sea salt and black pepper.
Roast the tomatoes for 12 to 15 minutes until the skins begin to blister and burst.
While the tomatoes roast, bring a medium pot of salted water to a boil and cook the gnocchi according to the package instructions, then drain and set aside.
Cut the chicken breast into bite-sized pieces and season with garlic powder and the remaining sea salt and pepper.
Heat a non-stick skillet over medium-high heat and sauté the chicken until golden brown and cooked through, about 6-8 minutes.
Reduce the skillet heat to low and add the cooked gnocchi, basil pesto, and Greek yogurt, stirring gently to create a creamy coating.
Add the fresh spinach to the skillet and toss for 1 minute until just wilted.
Plate the creamy gnocchi and chicken, then top with the warm roasted tomatoes and any juices from the baking sheet.