I describe myself as being 'unable to cook'. I have several recipe books, and given the right ingredients and plenty of time can produce something pretty fantastic. But when I walk in from work, have half an hour to feed the family, and open the cupboards to a mixed bag of ingredients, I simply have no idea where to start, so opt for something from the freezer straight into the oven. Similarly, if one ingredient of a recipe is missing, I can't predict the effect that will have on the outcome, or what I could use instead.
DP, on the other hand, just knows what herbs and spices work with what meat, how to rustle up a sauce from a random selection of ingedients, can create a meal appropriate to the time available, and can swap in different things to alter a staple classic.
My mother was the queen of the microwave and we always had a freezer bulging with convenience foods, so it wasn't never part of my upbringing. I've tried working my way through Delia's 'How to Cook', to learn the basics, but when maternity leave ended and I went back to work, that half hour time slot in the evenings just isn't enough to continue learning.