@n2vintage what's Tiki's diet like now? I agree with
@Buttersquash that acting frantically or erratically to get at whatever food you're eating could be signs of a deficiency. Remember,
all birds need a healthy, VARIED diet to make sure they are getting all of the necessary nutrients (macros, vitamins, trace minerals, etc). That being said, you do need to make sure she isn't getting into things that are bad for her. Meat is definitely not the best. Remember they are supposed to be eating minimal iron? Well, red meat like steak or even ham is one of the greatest sources of iron you can get so try to make sure you are keeping it away from her. The salt or seasoning on the meat is definitely bad as well if she is trying to make stealing food a regular thing. Then there's the fat... Trust me when I say I know how sneaky these little buggers can be! My Kevin has dive-bombed bowls of fruit in the kitchen and then swooped away before I can make a move!
You just gotta be vigilant, and in extreme cases keep her locked up when you are eating.
Coffee is a another HUGE no-no. Caffeine can be fatal to birds in high enough doses so don't have her getting in the habit of drinking out of your cups! Finally, try to stick with feeding foods that are as low in iron AND vitamin C as possible. Both cabbage and tomatoes don't really fit this bill.
Here is a link to an aracari food guide I put together for myself. In general I try to feed as many green/yellow foods as possible with maybe 3-4 pieces of the red foods. And example of Kevin's daily diet 1 tbsp softbill pellets (necessary to make sure he is getting all of his vitamins/minerals), 1/2 cup papaya, a handful of blueberries, some apple/pear/peach/nectarine, a couple grapes/pomegranate seeds, and then a vegetable like steamed carrots, cucumber, sweet potato, or greens. The fruits and veggie change based on the season (for example more berries in summer and more melons in winter), but overall I try to give him half a dozen or so different options each day. This keeps him very happy and he never tries to steal food.
Some great supplements you can use are coconut oil (or red palm oil) for the omega 3 fast acids, and decaf black tea either sprinkled on their food or brewed and served alongside their water. The tannins in black tea actually help block the absorption of iron by the liver (it binds it). Just remember, no caffeine!
Finally, if your bird is suffering from a deficiency it may be protein (by the sounds of things). I know that before I started feeding greens occasionally, Kevin would try to grab them out of my salad bowl whenever he got the chance, just like
@Buttersquash's curl crested. In your case, being on some sort of pelleted diet is going to be very important for their general protein intake. If Tiki is already on one, I've also heard of breeders supplementing their breeding birds with meal worms or crickets. Insects could be a good choice (especially to get out her prey drive) since they are low iron unlike animal products.