That's a good point, and it's certainly worth exploring further.
I've been looking into some practical alternatives that even a guy who is not handy in the kitchen (like me) can manage. Of course, the tough part is that it also has to be fairly affordable. (Yes, cooking at home almost always financially trumps eating out, but if one is not careful, that is not always the case.)
The best non-microwave alternative I've seen so far is the crockpot. It is literally a "set it and forget it" device. The only thing it requires is some prior planning from the night before. Yeah, it sounds like something your granny may have used, but I have one and I will swear by it. Worth every penny.
Otherwise, the microwave is still useful. I also have a book called, "A Man, A Can, and a Microwave". Great book. Almost like a children's book actually, complete with pictures of the ingredients that you're suppose to buy.

But it's very simple and straightforward, and cooking is almost exclusively done with the microwave.
There's also boiling stuff, which if you're not stuck in a basic dorm with no stove, it can be easy to pull off. Pasta and rice is just around the corner, and if it's on sale, even the occasional bratwurst with Bavarian sauerkraut.
Last resort is your TV dinner and canned foods. I've done that too. Not great, but not bad if you're strapped for time.
Another possibility I am experimenting with is roasting and uh... *cough* baking. Anyways, it's like a crock-pot sped up... but nowhere near the speed of a microwave. I'm still working on it... but I think this method may get muscled-out by the other alternatives. (So far, crock potting is easier, microwaving is faster, and grilling is simply tastier.)
Tonight, I boiled some pasta and served it with tomato-alfredo sauce that was on sale, along with imitation crab meat and green onion. Nothing fancy to speak of, but it was affordable and tasty enough.
It's tough eating at home all the time, especially when you're a bachelor who has to do all the shopping, cooking, and then cleaning the dishes afterwards. And thing is, I like eating out anyways, but I am trying to minimize the food costs whenever I can. And the cool thing is, when you finally get good with something, it's often-times better than any stuff you pay for in a restaurant.
Just my humble opinions. Please take it for what it's worth.