Publishing a paper in my own workshop I'm co-organizing a workshop in conjunction of a leading conference. Since the topic is quite close to my work I'm considering to submit my own paper to the workshop.
Given the fact that I'm serving as one of the workshop chairs (and the review process is single-blind)- Is it ok to submit my own paper there?
Yes, you can submit, but if you are concerned about fairness, as seems obviously true since you are asking, then you may need to leave all reviewing to others.
You might, however, also consult the wider conference committee to see if they have any reservations or suggestions.
But such workshops are intended for a relatively small group of very interested people, of whom you are one. And it is hard, in such groups, to guarantee that no reviewer knows the author.
If you are, however, a very senior academic, you might also consider not submitting and leaving the floor open to the less experienced.