Blanch the broccoli florets in boiling water with a bit of olive oil to maintain their color. Sauté the chopped onion until fragrant, then add the ground beef and stir-fry until it changes color.

Add the tomato chunks and stir-fry briefly, then add enough water to cover the ingredients and simmer until the tomatoes are soft. Pour the beaten egg into the boiling mixture (do not stir immediately; wait until the egg sets before stirring).