If you have a chef's station, you can hire a chef, you can order food just like you can at a restaurant. Full menu included, even the new experimental foods. You can't order drinks from the chef, but you could just make drinks or hire a mixologist! I wonder if you could order for guests through the menu interaction, I could order for my Sim, just as if he was at a restaurant.
Edit: No you can't order for guests, or even other playable Sims.