It doesn't matter what you've got, or whether her food bowl was just filled (or emptied). She wants it.
Elka is a smart girl, and will try various cute (and frustrating) means of enticing some of your food into her mouth. Only rarely has she ever stolen anything: she counter surfed once and took the top bun off of a sandwich once, in the first year we got her. Nothing since, unless some tales went untold. But, she really wants what you're eating.
She'll lay down next to you, or sit, and put her chin on your knee. She'll walk around to try to get a better angle. She'll lay somewhere and stare at your food, with or without vocalizations at it. She will bring you a toy and put it on your or near you, and then eye the food again, clearly soliciting a trade. Sometimes she's more pushy, most of the time less. Lately, she's been more.
When more pushy, this includes constant management. The head is no longer allowed on my knee. She must lay down somewhere, not pace around staring like a creeper. She is not fed from my plate (which, arguably, caused this problem in the first place...but most of the time, Elka's manners regarding this are quite good.).
In fact, as I've typed this, I've been eating my breakfast. At the coffee table. Elka is on the couch next to me, but has been quiet. Her nose has not touched my plate. She has not pushed me or licked the air over the food (this is very weird. I can't claim in any way that it isn't), or whined or complained. For this, we will go to the kitchen with my empty plate, and she will be rewarded. This stricter management stuff started yesterday; maybe it won't even take a full week, who knows?