Heat 1/2 tablespoon oil in a wok/kadai. Add all vegetables including red and green capsicum, spring onion and spinach. Saute for 2 minutes and turn off the flame.
Let it cool down. On other hand, take a bowl and crack all the eggs. Beat them properly.
Add green chillies, black pepper powder, chaat masala and salt to taste. Grease muffin tray with rest of oil.
Once the vegetables cool down, mix them with eggs. Add the egg mixture in the muffin tray using a spoon. Sprinkle some grated cheese on it.
Pop the tray into the oven for 15 to 18 minutes until the tops are firm to touch.
Once its done, take them out and enjoy hot fluffy egg muffin.
Serve Egg Muffin With Vegetables along with a chai.