I start by boiling salted water in a large pot until it bubbles rapidly. Then I cook the tortellini according to package instructions until tender. After draining, I set it aside while preparing the sauce.
In a large pan, I heat olive oil and butter together over medium heat. Then I sauté garlic until fragrant but not browned, usually about one minute. I add cherry tomatoes and cook until they start softening and releasing juices.
Next, I pour in the heavy cream and stir it gently into the tomato mixture. I let it simmer slightly so it thickens and absorbs all the flavors. Then I add spinach and cook until it wilts into the creamy sauce.
I add the cooked tortellini directly into the skillet with the sauce. Then I gently toss everything so the pasta is fully coated and creamy. Finally, I mix in parmesan cheese, salt, and pepper for the finishing touch.