Add the olive oil and butter to a large skillet over medium heat. When the butter melts, add the garlic and red pepper flakes. Cook for about 30 seconds, just until fragrant.
1 Tablespoon olive oil, 1 Tablespoon butter, 3-4 cloves garlic, 1/4 teaspoon red pepper flakes
Add the broth, sun-dried tomatoes, 1/2 teaspoon salt, and a pinch of pepper. Stir and bring to a simmer.
1/2 cup low-sodium chicken or vegetable broth, 1/2 cup oil-packed julienned sun-dried tomatoes, kosher salt and black pepper
Stir in the cream, followed by the tortellini. Reduce heat to medium-low and cover the skillet. Cook for 5 minutes, then check the tortellini. If they’re not tender, return the lid and cook for 30-60 seconds more, but take care not to cook too long, or the sauce will separate. If you’re on the fence, go ahead and proceed with the next step.
1 cup heavy cream, 18-20 ounces fresh cheese or spinach-filled tortellini
Remove the lid, reduce heat further to low, and stir in spinach, Parmesan, and lemon juice. Let spinach wilt for about 1 minute and season with extra salt and pepper to taste. Serve right away with additional Parmesan or fresh slivered basil.
2 generous handfuls fresh baby spinach, 1/4 cup fresh-grated Parmesan cheese, juice of 1/2 lemon, fresh basil or parsley