Food photography, C&C please?

Hi DPReview friends, I'm a beginner here, looking for some C&C on my food photography. Let me start out by saying that I have to work with the light that I have. I'm taking pictures in my kitchen, which has some diffuse overhead lights from overly-warm incandescent bulbs, and two halogen spot lights which are a bit whiter and more focussed.

I do appreciate that my pictures would be better if I could take the food to a studio where I had lots of pure, beautiful, diffuse white light coming from the right directions. But that's a bit unrealistic for now, given budget constraints. So any tips for how to make the best of a bad situation?

I know the ISO is high and there's plenty of irritating noise at 100%, but this isn't meant for an enlargement, so I'm hoping the noise issue isn't too bad. I'd have dialed the ISO down further, but I wanted the depth of field to stay fairly wide. (I know, I know, get a tripod.)

Twice-cooked beef with fresh chiles, cumin, Xinjiang dry spices, and Xiaoxing rice wine.