In a large pot, bring salted water to a boil. Cook the cheese tortellini according to package instructions until al dente. Drain and set aside.
In a large skillet, heat the olive oil over medium heat. Add the minced garlic and sauté for about 1 minute until fragrant but not browned.
Pour in the heavy cream and bring to a gentle simmer. Add the diced tomatoes, red pepper flakes, Italian seasoning, and stir well. Season with salt and pepper to taste.
Stir in the chopped spinach and let it wilt into the sauce for about 2-3 minutes, stirring occasionally.
Add the cooked tortellini to the skillet and gently toss to coat in the creamy sauce. Sprinkle in the grated Parmesan cheese and mix until melted and well combined.
Remove from heat and let sit for a minute. Serve hot, garnished with fresh basil leaves for a burst of color and flavor.
Notes
Serve the tortellini in shallow bowls, with extra Parmesan cheese sprinkled on top and basil leaves for garnish. A drizzle of olive oil can add a nice finishing touch.