Other than using the microwave more (which honestly is something I try
to avoid unless I'm in a critical hurry, or am cooking carrots), there
are some shortcuts that I like to use, and would be thrilled to hear
others from others in the same boat. :-)

Pre-sliced veggies such as pre-bagged brocolli or mushrooms,
pre-washed/bagged greens such as baby spinach,
Canned low-salt soups for sauces, and they also work well in stir
fry's,
I usually use the cream ones including celery, brocolli and mushroom,
Planning for the meat and thawing it the night before, and sometimes
also pre-cutting or slicing it for the morning brunch if I am planning
stir fry,
using a lot of eggs for frittatas,
pre-grated cheeses kept in the freezer.

That's all I can think of off the top of my head other than the
obvious "Meal planning". :-)

C.