I would strongly recommend slow cookers. You can leave it in the morning and get it in the evening. The recipes are straightforward and require little actual cooking knowledge.
Even better you can easily cook large quantities so you're not even cooking every day.
My healthy favorite is slow-cooked stew combined with rice-cooker brown rice/quinoa - both are set on timers so they finish just before we get home - so no reheating.
I second this advice. A slow cooker is really ideal for your use case and can have some dramatically amazing results.
Still, you can't slow cook something like a pan-sautéed chicken breast. But many people, particularly single people, simply don't want to expend the effort for the reward. I have no problem with that; been there, done that.
I make a slow-cooker vegetable soup: low-sodium V8 juice with whatever chopped vegetables and beans I feel like / have on hand, typically kidney beans, carrot, onion, mushroom, bok choy, garlic ...
It takes me about a half-hour to chop up the vegetables, but one round makes a lot of soup.
Even better you can easily cook large quantities so you're not even cooking every day.
My healthy favorite is slow-cooked stew combined with rice-cooker brown rice/quinoa - both are set on timers so they finish just before we get home - so no reheating.