If I'm Tired or lazy ill open a mre entree and nuke it
What helps the flavor a lot for me anyhow
is to add around a tablespoon more or less of pre packaged
seasoning mix to the entree--mix and let set a few minutes
then nuke it.
Example:
sloppy joes--add lawrys or mcCormick Sloppy joe mix
Not The Whole pack just a bit
Chicken frajitas--Chicken frajitas mix
The Same With Other Entrees
There is Almost Certainly a seasoning mix Available
that will accent the flavor of all Mre entrees
Except mabee The Dreaded CCC

Once The Seasoning Packs are opened i store them in zip lock
Sandwich bags to keep them fresh.
Make Sure you shake the seasoning bag well to get a good blend
Sometimes i add a bit of Cold water and pre mix
before adding them to the entree
not a real great tips n tricks
but i wanted to contribute
hope this helps