I absolutely recommend you do make your own baby food. It is super easy, super affordable and definitely manageable on your tight schedule. I also work full time and have a 3 yr & 1 yr old. I've been making my own baby food for my baby since he was 4 months old. I did the same for my older son. I guarantee you if I can do it, so can you. I still recommend you buy jar food, because it is convenient for times you go out to dinner or travel.
The easiest way I found is every time I cook something for the family, I also cook for the baby. This is how you work it into your schedule. Otherwise, you can do it all on the weekend.
I chop chicken breast in bite size pieces and cook them in chicken broth. Beef I cut thinly and cook the same way. Actually, I cook all protein and veggies in no fat, low-sodium chicken broth because it gives the food some flavor. Sometimes I choose to also steam some of the veggies. Anyway once you have you protein and veggies cooked, you want to puree them with the same broth you cooked them in because the vitamins for the veggies will seep into the liquid, and because a little liquid helps the puree process.
After pureeing your protein/veggies I portion it into Ice Cube trays (I bought the ones that come with a cover from "OXO"). I freeze the food and it is perfect portion control because each food cube is about a tablespoon.
Fruit is a little different because you don't need liquid to puree. Only I found that watermelon really doesn't work well for this method, but I still do puree watermelon and serve it to my baby in a net teether, so he can suck on it.
Veggies that work great are any squash, zucchini, broccoli, egg plant, corn, peas, but potatoes you want to bake in the oven until they fall apart. Great fruits are pears, strawberries, blueberries, mango, apples, bananas. Best of all, you can mix and match to come up with different combinations to serve your baby.
I hear people use blenders, mixers, etc. I have one of those "Magic Bullet" nock-offs call the "Mrs. Kitchen". It is perfect because it is small and takes almost no space on my counter. Plus, it purees so well that even chicken can be smooth enough for a "stage 1" eater.
Best of luck!