Two come to mind:
Tomato rice, which is just placing a tomato in the rice cooker when cooking rice. I add more things nowadays like corn, onions, meat, salt and pepper. But I enjoy how easy it is to make and eat it with some sriracha :)
The other one is spaghetti. I do enjoy using high quality ingredients for this one (spaghetti made with semolina flour, bronze extrusion, slow dried), good sauce makes quite a difference. I’ll cook them until barely cooked, right before al dente, then finish cooking then on the sauce and some extras (onions, olives, meat, red pepper flakes).
This dish is one I really really enjoy but cook it less often since it takes a bit more time