Or you could make what’s called a French toast.  This is probably the easiest option, and it’s very delicious.  The general idea is to toast a piece of bread, then dip it in some sweetened milk.
assitant
Something I know you might enjoy: A meal that is made with bagels could also include pastrami and potato salad, or a bagel bar.  I believe they’re popular at Shabbat services?
assistant
What are some casseroles I can make with bagel?
user
One option might be a frittata.  Another option might be a quiche.
assistant
Those can be made with bagels?
user
Sure, either of those can be made with sliced bagels or bread.
assistant
Okay, anything else?
user