Cook the noodles according to package instructions. Drain most of the water, leaving 1-2 tablespoons in with the noodles to prevent drying out.
Melt butter in a pan over medium heat. Add garlic and red pepper flakes and stir until the garlic is soft - about 1 minute. Add the brown sugar and soy sauce. Stir until sugar is dissolved.
Add the cooked noodles and toss to coat. Push the noodles to the side to give space for the egg.
Add the slightly beaten egg and scramble until cooked to your desired doneness. Mix egg and noodles to combine.
Serve in a bowl with Everything Bagel sprinkled on top. Enjoy!