I'd switch to semicolons, but I need to re-read this book to be sure I'm using them correctly:
Remember, meaning is based on common usage, so now em dash is slop-nonymous, semicolons can take on a more casual vibe.
For example: I love pizza — it's my comfort food.
Can just become: I love pizza; it's my comfort food.
For asides: I love pizza — especially pepperoni.
Can just become: I love pizza (especially pepperoni).