Cook spaghetti in a large saucepan according to package directions.

While the spaghetti cooks, spray a large nonstick skillet with cooking spray and heat over medium-high heat.

Lightly beat the egg white and whole egg together.

Pour the egg mixture into the skillet and cook, stirring frequently, until the eggs are scrambled and set.

Transfer the scrambled eggs to a bowl and cover to keep them warm.

Add snow peas to the skillet and cook, stirring frequently, for 2 to 3 minutes, or until crisp-tender.

Add teriyaki sauce to the skillet and cook, stirring frequently, until heated through.

Drain the cooked spaghetti and return it to the saucepan.

Add the snow pea mixture, scrambled eggs, peanuts, and cilantro to the spaghetti and mix lightly to combine.

Garnish with lime or lemon wedges (optional) and squeeze over each serving for added flavor.