Quick and healthy. Does it exsist?

I'm a vegetarian as are my children and I try my best to purchase organic produce. You would think this would land me in the healthy eating category. Not necessarily. I put effort into meal planning and work to avoid frozen and prepared meals, but it still seems that I am eating way too much fats and sugars. To give an example, I was at the supermarket today working on picking out a yummy dinner we'll all enjoy. I though Mexican would work well. I bought fresh veggies and black beans for chimichangas and figured my daughter would have a quesadilla. (It's not so much that she wouldn't like the chimichangas but we spice them up enough that they are too spicy for her).

Any how, it turns out that the dinner wasn't good for us at all. Don't get me wrong... it tasted delicious, but between frying up the veggies, the cheese, sour cream and guacamole the meal was a disaster (and that's before I put the whole thing in oil to fry it).

I'm not sure where I'm going wrong. I really enjoy healthy food, but it seems with my busy life I don't get around to all the perishables before they expire, and I certainly don't have time to go to the supermarket every day when I have the brilliant dinner idea (which rarely happens anyhow).

So I guess what I'm getting at here is what am I to do? I want to eat healthy and instill good eating habits for my children, but I just don't seem to find the time everyday. I would say a good two times a week we make a very healthy and well rounded meal, but I'm not satisfied with that average.

I hope to get better at this as my children get older so they can learn to cook healthy for their children. I'm just not sure where to start.