I work full time, my fiance goes to nursing school, we both ride horses, she works at the horse barn, I have Jiujitsu training and competitions, plus my weightlifting and other workout times. We own 4 dogs and 2 horses that we have to take care of as well as house maintenance, car maintenace, etc... etc...
We eat very well, and very healthily, and very inexpensively generally speaking.
The key is to prepare and preserve large meals. Things like spaghetti, chili, shepherds pie, ratatoulli, curry, or even baking 6-8 chicken breasts at once and then freezing them for later re-heating. We package the stuff out into Tupperware containers and when it's food time we just grab one and heat it up. If you have a chest freezer you can spend one weekend making 3-4 different large dishes like that, packaging them all up into tupperware, labeling them, and them putting them in the deep freeze.
Now you have a large variety of good, home made, meals that are ready to eat in just a few minutes. It takes one or two days a month to prepare enough food for everyone. Unless you have like *5* kids, but in that case you're poor because you made bad choices and you'll just have to live with that.
Otherwise you're just being lazy and choosing not to prepare things in advance.
Seriously, how long does it take to eat out? You drive somewhere, 10 minutes, if it's fast food you wait in line for 5 minutes, you eat, 20 minutes, you drive home, 10 minutes. That's 45 minutes. You tell me you have no idea how to cook a decent meal in 45 minutes? Buy a cookbook.