A skin idea I came up with while talking with my friend, hope you all like it! =] (P.S. Not the most skilled photoshoper)
Some Quotes
Taunt
CRUSTY SEA MILF4 votesFill out a Riot application immediately.
Leona Dicraprio1 votesThank you sir :3 ill take that as a complement, ill get right on that! 
CubedJustice4 votesChef Garen, Baker Pantheon? Just take all the super manly champions and toss them in a kitchen. I approve.
TheMasonJar2 votesButcher Mordy (his mace is a meat tenderizer)
hueing intensifies
lightdragoon883 votesBe careful of his rival: French Gourmet Thresh.
Colonel Lapoose2 votesThat is absolutely amazing, Riot we need a Kitchen Bundle! Carrot Garen, Baker Pantheon, Butcher Mordekaiser, French Gourmet Thresh, Delivery Girl Sivir, China Shop Alistar, Fruit Ninja Yasuo, Recipe Ryze, and perhaps....Waitress Lux?
lightdragoon882 votesNah the Waitress should be Bard.
His E would be the Kitchen Doors
His W would be the dish cover by the plate but it rises until it at peak healing when the cover is taken off and you see the food.
And his ult would have him throw the bill that would cause everyone in the area to freeze cause they see how much it cost.
Colonel Lapoose1 votesHaha great idea!
TheKillerMilkman1 votesDelivery boy hecarim: Rides a moped, hits people with a pizza shovel (no idea what it's actually called), his heal is a giant pizza around him.
Same idea could work for Sejauni.