Bring a pot of water to boil and boil your green beans for 5-8 minutes. (5 if you like them very crisp)
Remove the green beans from the boiling water and set aside to drain on a paper towel. (You don't want them to be too wet or it will splatter like crazy when you add it to the bacon mixture)
In a large skillet over medium heat, cook your bacon pieces until they are slightly underdone then drain off the bacon grease.
Bring the skillet with the bacon back to the heat and add your butter, brown sugar, and seasonings and stir until everything is melted together. (Just about 2 minutes)
Add your green beans to the skillet and toss to coat with the bacon mixture.