Prepare your choice of protein: cook salmon, prepare omelet with crab sticks, sear shrimp, cook beef, mash avocado, or fry bacon
Cook your egg according to preference (soft-boiled, hard-boiled, folded, scrambled, or sunny-side)
Slice the croissant horizontally
Spread butter on the inside of the croissant
Layer the cooked protein, egg, and tomato slices inside the croissant
Season with black pepper to taste
Serve immediately while warm
