Full story, it's not she's busy so she can't do it; she's not a working mom, and she has a time to experiment or learn.

She sometimes eat rice with only vegetable oil and soy sauce, which baffles me. She also says she's happy to eat salad with no dressings. It's not that I want heavy seasoning.

She often fries cut vegetables with no batter, and she doesn't add any seasoning a lot of times.
Everything she makes is bland, and I feel guilty just sprinkling salt onto my plate to eat it better.
I feel like I don't belong because I feel like I have a strong objection to how she thinks it's ok for foods to taste (or no taste).
She also never samples before putting on a plate, so I say "This doesn't have any taste" and she's just surprised (it's not that she's pretending to be surprised. She probably thinks it's not her job.).

So I just don't understand.

Additionally, my dad has a slightly high blood pressure, but her dishes tasted nothing as long as I can remember before he was recommended by the doctor to cut the salt intake. So it's probably not going to change.

I've grown to be someone who hates adding salt or anything without breaking the original flavor but has to because it just tastes nothing. I really love foods from grocery stores just because I can actually taste salt and seasoning.