Cook pasta according to package directions. Drain and set aside.

While the pasta is cooking, add the flesh of the avocados, basil leaves, lemon juice, salt and pepper to a food processor. Process until completely smooth. Taste and add salt and pepper if necessary.

In the same pot used to cook the pasta, add the olive oil and heat over medium-heat. Add the garlic and cook for about 2 minutes. Add the tomatoes and cook for another 30 seconds.

Reduce heat to medium-low and add the sauce. Stir to mix with the garlic and tomatoes. Once hot, add the pasta and all but a little bit of the bacon to the pot and stir until pasta is completely coated with sauce and ingredients are evenly distributed.

To serve, spoon pasta into bowls and top with remaining bacon and shaved Parmesan.