There are plenty of sites offering online lesson plans and suggestions.  You don't have to restrict yourself to ESL and EFL lessons (some pedants will claim these are completely different, but the core goal is to teach English to someone who communicates in another language, so the similarities will be greater than the differences).

You could also take an existing lesson plan for teaching relevant vocabulary and grammar points to younger native English speaking students and adapt it for your classes.  Yes, this will be some work, but it's better than starting with a blank piece of paper.

Without knowing tons of details about what you are teaching to what's on the syllabus, what levels of students are you dealing with, and what your school's expectations are, there's no way to give a blanket recommendation of "This is the best site to solve your problem."  Spend a couple hours searching and you should find several good candidates.  If their lessons meet the guidelines and are as good as what you were creeating from scratch, put them to use.  If they are ok, but need some work, upgrading a 3/4 ready lesson plan beats having no lesson plan.  Try to find a few different sites that have something ok and give them a try with your students.


Also, remember this critical point.  If you create a good lesson plan, you can adapt it and reuse it for other groups you are currently teaching and also use it with your next round of students.  There's a reason why many professors teaching lower level college classes do it from a folder full of very old looking pieces of paper.  Once they had a lecture worked out, there was not lot of reason not to reuse it when teaching the same class the next semester or next academic year with only minor updates in the margins until they retired.

I'm tired.  Which way to the emergency nap room?

or did it? 

I've always got an emergency bottle of superglue handy.  If anyone ever tries to make me leave, I'll use it to make 100% sure I can stick around.
 

or did it?