If you can get easy grabs for breakfast and lunch, it makes dinner seem a lot easier to handle.
Some of my favorite do aheads for breakfast -
--French toast and pancakes (easy to big batch and they freeze like magic, reheat in the toaster, you can cut them up for finger food or spread things on them for breakfast sandwiches - my daughters favorite are buckwheat pancakes with chocolate chips)
--Steel cut oats (who has time to make that every day? Not me. But you can make a huge bowl of it and keep it in the fridge, and reheat in the mornings and add whatever your specific people like in it , you can even make a little 'add on' plate for the kids, so they can sprinkle in their own. Makes it seem fancy.)
--parfaits (since it sounds like you're a boss and even make your own yogurt, these will be even tastier. I like to get little bowls and put in plain yogurt, and some frozen or dried fruit, and some nuts. Whatever your family likes. That way you have something that you can grab and go with, and you can make them small enough for little appetites. If they are portioned out in the fridge, the older kids can even get them themselves. Makes it seem fancy.)
--Breakfast burritos. (This is where the magic comes in. Eggs, cheese, meat, no meat, vegg, beans, onions, no onions.. whatever combos your people love to eat can be slammed in a tortilla, in advance, and frozen for a quick breakfast or lunch. You can make them small or large... they heat in the microwave in minutes, or if you don't happen to be a microwavey kind of family.. in a nice hot oven in just a little longer. Either way, they didn't take morning prep, cause you 'so' have other things to do. The only things to remember when you are assembling is the fillings need to be cold, and the tortilla needs to be warm, then wrap them up and send them to the freezer.)
--My best hint for lunch, cause that's a hard one at our house, is a container of cut up vegg in the fridge to grab bits and pieces of as needed (celery, carrots, and cucumber are our finger foods of preference) and little bags or cups of snack mix portioned out (dried apricots, almonds, and shredded wheat is our go to)
--And lastly.. if you have the fridge space on a regular basis.. this is a variation on the whole no knead six minute bread thing... http://jezebel.com/5881847/how-to-make-easy-fast-foolproof-bread-from-scratch
. Its the least hassle bread recipe I've found because it's the least timing dependent, and its really good bread.
--And even more lastly... take a deep breath. That's a ton of stuff you're juggling. There are days when I feel like if I got mine to school on time and not on fire, I deserve a medal. And I've certainly not got as many as you do. However, I suspect if you've got that many wee ones floating about there's a good chance there is a star chart in your house somewhere to show your kids the good job they're doing. Make yourself one, and give yourself stars for all the categories of things you take care of in a day. And then don't forget to give yourself a reward, cause 'that' is what will keep your batteries going to keep doing all the awesome stuff your doing.