I used to own an instant pot. Those are great. I gave it away when I moved and now I just have a regular pressure cooker, which is also really great.
My quickest and easiest, but still yummy thing to make is chickpeas. I soak them overnight. Pick out the ugly ones. Drain the water. Barely cover them with fresh water (since they’ve already soaked, they don’t need tons of water). Then I heat the pot on high until I hear the pressure noise, switch it to low heat, and let it cook for 15-20 minutes. Then I turn off the heat and let the pressure out naturally.
Once they’re done I sometimes just eat a bowl of them with nothing more than olive oil and salt. Yum.
One of my other favorite dishes is a bit more elaborate but still simple and healthy: split pea soup. I don’t soak the peas but I do rinse them. I put them in the pressure cooker with a bay leaf, chopped garlic and onions, diced potatoes and carrots, and I'll cover the whole thing with a decent amount of water. Then, like the chick peas, I’ll let the pressure hiss, then put it on low heat for 15-20 minutes. I let the pressure naturally release.
Sometimes I’ll sautée even more onions and garlic in a separate pan with avocado oil on low heat for a while, until they look like they’re getting caramelized (fucking yum).
When the soup is done, I’ll remove the bay leaf, add the extra onions and garlic (if I did that step), add some salt, then use an immersion blender. It’s SUPER IMPORTANT to remove the bay leaf if you use an immersion blender.
Then when I eat it, I put a decent amount of olive oil and make sure the salt level is tasty. Even better if I have spicy olive oil around :)
When I don't feel like proper cooking but want a half-decent(-ish) meal:
I begin frying sausages in a pan. As they're frying, I chop them up with the egg flip. Before they get actually cooked, I throw on a tin of tomatoes. Then I add basil, salt, pepper, curry powder... whatever's available and fits the mood. When the sausages are cooked (basically braised), I throw it onto a plate and eat it. Very quick and easy, fairly healthy (you can tweak it to make it healthier if that's your thing), and (when I get it right) tasty.