Quick asparagus & potato stir-fry

I make this Asparagus, shiitake, potato, green been, onion stir fry w/ Gardein beef- less tips quite a bit. It's really easy. In fact, I use Trader Joe's Country Potatoes with Hericots Verts & Wild Mushrooms from the freezer section. I always add salt, pepper and red pepper flakes to a little olive oil, then add a handful of onion to begin. Next I add the other ingredients (steaming the asparagus first) and stir-fry.  I love to keep the heat a little on the high side to get a little char on everything.