1. Begin by bringing a large pot of salted water to a boil. Add the linguine and cook until al dente, following the package directions. Drain the noodles and set them aside.

2. While the pasta is cooking, heat the olive oil in a large skillet over medium-high heat. Add the ground beef, season with salt and pepper, and cook until browned and fully crumbled. Once done, transfer the beef to a plate and set it aside.

3. In the same skillet, melt the butter over medium heat. Add the minced garlic and sauté for 1-2 minutes, or until fragrant and golden. Pour in the chicken broth, using a spatula to scrape up any flavorful bits from the pan. Let the broth simmer for a few minutes to slightly reduce.

4. Reduce the heat to low and stir in the heavy cream. Once it begins to warm, mix in the Parmesan and mozzarella cheeses, along with the Italian seasoning, garlic powder, salt, and pepper. Stir until the sauce becomes thick, smooth, and perfectly cheesy.

5. Return the cooked ground beef to the skillet and stir to coat it in the creamy garlic Parmesan sauce. Then, add the linguine and gently toss everything together until the pasta is fully coated in the rich, flavorful sauce.

6. Serve the Savory Garlic Butter Ground Beef Linguine hot, garnished with a sprinkle of fresh parsley and extra Parmesan, if desired.