Restaurant Empire 2 is the sequel to Restaurant Empire, a simulation game that has you running your own restaurant. You get to do everything, from picking out the decor, designing the menu, cooking the food, hiring staff...I'd have to say that there's no other restaurant game that's as deep or thorough. I love decorating the restaurants. I used to spend hours making houses in the Sims, and making restaurants in this game is very similar. There are over 700 different decorative items, too. 

There's no free trial, unfortunately, but you can pick up a copy over at Steam by following the link below.