beef n broccoli low mein

1 pkg. spaghetti, cooked to al dente
1 tsp sesame oil
1 Tbsp. peanut oil
1 Tbsp. fresh ginger, minced
4 cloves garlic, minced
3 c. broccoli, chopped
1 1/2 c. onion, sliced thin
1 Lb. flank steak, cut into strips
3 Tbsp. soy sauce
2 Tbsp. brown sugar
1 Tbsp. oyster sauce
1 Tbsp. chili paste
1/2 tsp. red pepper flakes (optional)
*eggs (optional--see note below)
Cook pasta according to package directions (don't add salt), drain. Combine pasta and sesame oil, tossing well to coat.

While pasta cooks, heat peanut oil in a large nonstick skillet over medium-high heat. Add the ginger and garlic; sauté 30 seconds. Add broccoli and onion; sauté 3 minutes. Add steak, and sauté 5 minutes or until done. Add pasta mixture, soy sauce, and remaining ingredients (minus the egg if you are going to use egg on the top); cook 1 minute or until lo mein is thoroughly heated, stirring constantly.