Not many. These are found in either, or both, Webster's Second International, and the Scrabble dictionary:
el
en
len
lev
ne
eleven
On the other hand, there are 1,965 words containing all those letters in the Scrabble dictionary, so you might be able to find a place to put those tiles. For instance, there are 74 words beginning in "len", and 24 ending in "len." Here are those:
befallen
chapfallen
chopfallen
crestfallen
downfallen
fallen
glen
magdalen
mullen
pollen
psoralen
refallen
stolen
stollen
sullen
swollen
unfallen
unswollen
upswollen
woolen
woollen
eleven
Called
yodalee
A L R S E T:AlertsAltersSalterSlaterStaler
Mellow
Eating breakfast, I came up with cereal. can't get any others. After breakfast I had to relace my shoe.
explode
ReobjectObjectEjectorBlencherRejectEjectObjetBelcherBelchBenchBencherBlenchHellbentJoltJolterBlotchBotchBotcherEntrenchTrench
Some words that you can make from the letters 'x e m s e l o' are:eel, eelselm, elmslee, leesLeoloseloxmemole, molesox, oxesseeseemsexsloesosolesome
Special.
Words that can be made from the letters 'garel' are:aagealeareeareraerggalgalegeargelglarelalaglagerlargelealegragragerealregal
Bad freewill free will bad will
So lame.