Heat olive oil in a skillet over medium-high heat. Add ground beef and cook until browned.
Add diced onion, minced garlic, and chopped bell pepper. Cook until vegetables are tender.
Stir in chopped parsley, tamari sauce, salt, and black pepper. Cook for another 3–4 minutes.
Notes
This skillet dish can be an excellent topping for a bed of zucchini noodles for added crunch and flavor contrast. Store leftovers in the fridge for up to three days.