I'm Welsh Rarebit

For "five feet of fury," today I thought I'd also be a vegetarian dish.

I'm Welsh Rarebit.

I am a cheese sauce comprised of butter, flour, Dijon mustard, Worcestershire sauce, salt, pepper, beer, cream, hot sauce, and cheese.
I am served over toasted rye bread.
In the Welsh tongue I am called Caws-Wedi-Pobi.
You’ll enjoy eating me in the winter because I am a bit heavy.
I am warm cheesy creamy soaked bread goodness.
I take only 15 minutes to prepare and yield four servings as a side dish.
The food network dot com rates my difficulty level as “Easy.”

Don't ask me to change, I am after all, Welsh Rarebit.