Whisk together eggs, tomatoes, onion, green chili, pepper, salt, cilantro, and milk in a large bowl.
Dip one slice of bread in the egg mixture and gently press down so the bread can absorb the egg mix. Flip the bread over and repeat on the other side.
Heat 1 tsp of butter in a pan. Place 2 soaked pieces of bread on the pan. Spoon over some extra egg mixture on top. Cook on medium heat for a minute or until the bottom side starts to turn golden brown.
Turnover and cook second side for another minute, until it becomes golden brown.
Repeat steps 2 through 4 until all five pieces of French toast are finished. Top with avocado and tomatoes and serve.
Jalapenos or other spicy peppers can be substituted for green chili pepper, depending on preference and spice tolerance.