Prepare Rice-A-Roni according to package directions, using 1 tablespoon of the vegetable oil instead of butter. Set aside.
In a large skillet or wok, heat remaining 1 tablespoon vegetable oil over medium-high heat. Add beaten eggs and scramble until just set. Remove eggs from skillet and set aside.
In the same skillet, add the cooked Rice-A-Roni, peas and carrots, and green onions. Stir-fry for 2-3 minutes until heated through.
Add scrambled eggs back to the skillet. Drizzle with soy sauce and sesame oil (if using). Toss to combine. Serve immediately.
Tips
For extra protein, add cooked chicken, shrimp, or tofu.
Substitute any leftover vegetables you have on hand.
Adjust soy sauce to taste; you can also add a pinch of white pepper.