First, slice the mushrooms and finely chop the onion and bell pepper.
Then, heat the oil in a pan and briefly sauté the garlic.
Next, add the mushrooms and cook for 4–5 minutes until the liquid evaporates and they lightly brown.
After that, toss in the onion and bell pepper, and sauté for another 2–3 minutes.
If you’d like to add an egg, crack it into the pan and stir until just cooked.
Finally, fold in the fresh spinach, which wilts in just a few seconds.
Drizzle with lemon juice or the dressing, season with salt and pepper, and top with fresh parsley or chili flakes.
