Boil pasta al dente and reserve 1/3 cup of pasta water.
Slice sausages into bite-size pieces. Turn a nonstick pan to medium heat and add sausages with no oil. Cook until each side is browned (approximately 4 minutes on each side).
Add minced garlic and olive oil to the pan with sausage and stir to combine. Let the garlic cook until fragrant. Around 2 minutes.
Add in spinach, lemon juice, salt, red pepper flakes and stir.
Add pasta and pasta water. Stir to coat everything well.
Top with pecorino remano if you want a little cheese!