Heat a good glug of olive oil in a medium saucepan. Add bacon and cook, uncovered on a medium high heat stirring often until bacon is starting to brown and crisp.
Drain broccoli well and toss in with the bacon. Add garlic and stir well. Cover and cook for 2-3 minutes or until broccoli is hot and tender.
Remove from the heat. Add a squeeze of lemon and the parmesan. Taste and season with salt or more lemon / parmesan as needed. Serve.