Why does my food taste so unsatisfying??

Hi All! I’ve been cooking for myself for a while, but almost every day for the past year and a half (I recently moved out of my parents house). I’ve always felt like a decent cook, as I can follow a recipe well. But now a year and a half in, I’ve been struggling.

Context: I am allergic to all dairy and sesame. And I only cook with a recipe!

Recently, I’ve been finding it hard to finish almost every meal I make simply because after a few bites they just take meh. Like it’s not that the food is making me sick or I don’t want to eat it. It just doesn’t seem to “hit” as well as a mom home cooked meal/restaurant meal. Yes, no dairy does take away some of the richness, but even dishes that don’t normally have dairy just taste mid.

Does anyone have any advice? I’m desperate over here I want to enjoy my food!

Edit: Probably not a health related issue - just had blood work done and it was all normal!