Cook the penne pasta al dente, according to package directions. Reserve 1 cup of the cooking water, then drain the pasta and set it aside.
In the meantime, in a large nonstick saucepan, cook the bacon over medium-high heat until it's browned, about 5-7 minutes. Using a slotted spoon, transfer bacon to a towel-lined plate to drain. Remove all but 1 tablespoon of the grease from the pan.
Stir in the tomato paste, Italian seasoning, salt, pepper, and half of the reserved pasta water. Allow the mixture to simmer for 2 minutes over medium-low heat.
Add in the heavy cream, vodka, and reserved cooked bacon. Allow it to simmer for about 4 minutes. (If the sauce is too thick, you can add in some more of the pasta water.)
Stir in the parmesan cheese until melted and incorporated. Toss with the cooked pasta until fully coated.
Serve portions in bowls and pass some freshly grated Parmesan cheese at the table.