If you want another option than the one listed in a previous answer, airbnb might be a great option for you. You could browse in the Dallas and Fort Worth area to find out what others are charging for properties similar to yours. Factor that in as well as what you still owe and what you paid for it by square footage and the furnishings in there. Tack on a lump sum for any utilities or let that be separate.
If it comes out to something that you feel is unfair, start with a sort of median price between the most you think someone would pay (not what you want them to pay) and the least amount of payment you would take.
If you go through airbnb, it's also easy to screen applicants and you wouldn't be bound to a tenant for 6 to 12 months at a time if you don't want to and neither would they be locked in if they only wanted a semi long term rental.
If you only want to rent it out at certain times of the year sort of like a vacation home, then you could do that as well.
I hope this helps! If you use my referral link in the source, you'll get $35 towards another rental if you decide to travel somewhere else.