Beef and Broccoli (asparagus) stir-fry

Well, P hates broccoli so when I made this for him I substituted asparagus.  When he was out of town and his mom was here, we made it with the broccoli, delicious!  This was originally from my healthy cooking magazine, but as always I've slightly tweaked it to work for us.

Ingredients:
2 tp cornstarch
1/2 cup beef broth
4 tp soy sauce
1/2 tp ginger powder
1 garlic clove, minced
1/2 lb beef sirloin steak, thinly sliced
2 tp sesame seeds
2 tp olive oil, divided
2 cups broccoli florets (or any other vegetable)
1 small yellow pepper, thinly sliced
1 cup hot cooked brown rice

Directions:
In a small bowl, combine the first five ingredients.
In a large pan, stir-fry beef and sesame seeds in olive oil until no longer pink; set aside.
Stir-fry broccoli in remaining oil for 3-4 minutes.  Add pepper; cook 4-6 minutes longer.
Stir cornstarch mixture and add to the pan.  Bring to a boil; cook and stir for 2 minutes or until thickened.  Add beef; heat through.  Serve with rice.