To a pan over medium heat, add ½ tbsp olive oil and spinach and sauté until the spinach begins to wilt down. Season with salt and black pepper. Transfer the cooked spinach to a bowl and set aside.
Wash and julienne the red pepper and cut the cherry tomatoes in half. To the same pan, add the peppers and sauté until softened. This should take about 2-4 minutes. Transfer the peppers onto the same bowl with the spinach and set aside.
Whisk the eggs with a pinch of salt and black pepper. To the same pan, add the remaining ½ tbsp olive oil, then pour in the whisked eggs. Scramble the eggs using a silicon spatula to push the outer edges towards the middle until the eggs are cooked. Transfer the eggs to the same bowl as the spinach and pepper.
Lastly, wipe the pan clean and cook the ground beef over medium heat until cooked through. Season the ground beef with salt and pepper. Once cooked, transfer the cooked ground beef to the bowl with the other cooked ingredients.
Add the chopped tomatoes to the bowl and crumble the feta cheese. Garnish with chopped parsley, optional. Serve right away.