In a large skillet over medium high heat, add 1 TBSP of olive oil to the pan. Sauté broccoli, peppers and box chop until you have a browned sear on them ( about 4-5 minutes), add in onions and mushrooms and brown. Finally, add in edamame and cook until warmed through.
Do not crowd pan. You can cook veggies in batches to allow for browning and flavor to develop.
Nestle browned meatballs into veggies. Pour simmering sauce over top, bring to a boil. Reduce heat to a simmer, cover and let steam for 15 minutes until meatballs are tender and cooked through.