Prepare the hamburger buns and set aside.
Add the oil or butter to a large skillet or dutch oven and heat over medium-high heat.
Once hot, add the beef and cook until brown, breaking it up with a wooden spoon as it cooks. Drain off the fat if desired.
Add the green pepper and cook until tender, 3 to 5 minutes.
Quick & Easy Paleo Hamburger Buns
Keto Low-Carb Hamburger Buns With Almond Flour
Low-Carb Keto Bacon-Wrapped Meatloaf