Last night I made black bean soup with lots of veggies: zucchini, corn, onion, and tomato, in my case, could use carrots or whatever else you have lying around.
Add some broth (chicken or veggie), chili powder, garlic, salt, pepper, basil, thyme, whatever else you think will taste good! Let simmer for a half hour or so. This is actually a fairly wintry meal, but i was in the mood for it. If I’m going to cook just for me, I’ll make something for a few meals at once. I had the soup again for dinner tonight!
I’ll will sometimes also pan-cook a chicken breast with spices or some kind of sauce, and have than with a salad or vegetable.
Pasta is good too, and can be made in small batches.
I also like to throw together a big salad with whatever I have in the fridge: leftover chicken, garbanzo beans, cheeses, and tons of veggies. Good for hot summer days.