Preheat the oven to 375°F / 190°C (170°C fan) and position a rack in the center.
Bring a large pot of water to a boil. Add the 1/2 teaspoon salt from the ingredient list, then add 1 1/2 cups (180 g) dried pasta and cook according to the package instructions until al dente.
While the pasta cooks, put 8 ounces (225 g) cherry tomatoes and 3 cloves minced garlic into a deep oven‑safe baking dish. Drizzle 1 tablespoon (15 ml) extra virgin olive oil over the tomatoes and garlic. Roast in the preheated oven for 7–8 minutes, until the tomatoes start to burst.
Drain the pasta well and add it to the baking dish with the roasted tomatoes. Add 3 ounces (85 g) baby spinach leaves and 3 tablespoons basil pesto. Toss everything together until combined and the spinach begins to wilt.
Return the baking dish to the oven and bake for 3 minutes to heat through.
Remove the dish from the oven, arrange 5 ounces (140 g) fresh mozzarella (sliced or torn) evenly over the pasta, and return to the oven. Bake for about 3 minutes more, or until the mozzarella is just melted.
Remove from the oven, sprinkle with the 1/4 teaspoon ground black pepper and the red chili flakes listed in the ingredients, garnish with fresh basil leaves, and serve.
Notes
Notes:
*Nutritional information are rough estimates.