Cook the ravioli in salted boiling water until just tender, drain, and toss with a little olive oil to prevent sticking.
Sear the shrimp in olive oil and butter, season with salt and pepper, cook until pink, then set aside.
Sauté the garlic in the same skillet over slightly reduced heat until fragrant and lightly golden.
Make the creamy sauce by adding heavy cream, chicken broth, Parmesan, Italian seasoning, and red pepper flakes; simmer until thickened.
Combine the shrimp and ravioli in the skillet, gently tossing everything to coat in the creamy sauce.
Finish with parsley and extra Parmesan, and serve while the sauce is smooth and hot.