The biggest change for me was learning to meal plan. It used to be 4 pm before I even considered dinner. Then it was a quick run to the store for the ingredients I'd need and dinner by 6. With kids that is just too funny to contemplate. Now I make a menu for a week, make a grocery list based on that, and shop once. Today I went to 6 stores with two kids--one was the vet's for cat medicine, and the other was Costco because we're almost out of cat food and rice milk. The third was a specialty store because I needed lemongrass and galangal (my kids love lemak as we do.) Then Trader Joe's which is next to Petsmart where we got dog food. (We'd done Sunflower after library story time.) Shopping with two mobile kids is exhausting, especially a marathon like today--which is out of the norm. Normally we do Trader Joe's and either Sunflower or Whole Foods, depending on what we need.
When baby 2 came along, I used the crockpot almost every night. I could fill it up after the kids were in bed then put it in the fridge. In the morning I turned it on and was done for the day. Eventually it got so I could prepare dinner when my husband got home from work and he could watch the kids. Now I can actually start dinner before he gets home. Other than the meal planning, our food didn't change that much with kids.
Then our daughter needed a special diet. We went from eating a lot of wheat and cheese dishes to being gluten and dairy free. It was a wonderful change, but it's not so easy any more. Especially since she can't have cane sugar or tomatoes either. I can't rely on packaged foods when the day's been overwhelming. I must really plan what we're going to eat.
Our son is 6 and fairly picky these days. He still loves curry and enchiladas, but he just decides he doesn't like something and that's that. So tonight was corn tortillas and scrambled eggs. He ate pasta with sauce. But because I don't force my kids to eat stuff, he will eventually ask to try something he's seen us eat a lot. For instance, I make tortillas out of mung beans. He would not try those tortillas for anything so we just left it alone. Then one day he asked if he could have a bite of my husband's lunch. Now he loves mung bean tortillas.
When my son was born I considered it a good day if I got a shower and made the bed. When my daughter was born, I considered it a good day if I got a shower. That says nothing about laundry or sweeping. And forget mopping. Oh, laundry. I posted on facebook that what I REALLY, REALLY, REALLY want is for someone to fold my laundry and sort socks. Since my son was born clean laundry sits in piles in our bedroom. Usually I can fold it on Thursday or Friday. I wash all week long, but folding is a joke. Getting a laundry sorter was a great day. http://www.amazon.com/gp/product/B001D4AJNA/ref=oh_o00_s01_i00_details
You may find this book about child led weaning very helpful. http://www.amazon.com/Baby-Led-Weaning-Essential-Introducing-Confident/dp/161519021X/ref=sr_1_1?ie=UTF8&qid=1327131548&sr=8-1
Bottom line, just cook, feed your kids what they'll eat, and don't introduce them to junk. The only reason kids love McDonalds is because someone fed it to them.