Congrats on your new pup. There is no such thing as a teacup it was a term made up by bad breeders. You really should keep them on the same food the breeder has them on for a couple months.

OK ty. I know I should keep her on the same food the brelders have her on but I'm not too found that kind of food so I thought I'd mix it with one of the 3 brands I like but I wasn't for sure. Ty again so much again.

For the sake of the new puppy that is leaving his mom, his human mom and everything that is familiar to him, he will be going with a stranger, to a new and unfamiliar home with strange smells,strange voices,new schedules, no fur mom, there are many adjustments this baby has to make. To keep him a bit stable I suggest keeping him on what the breeder is feeding him for several weeks until he adjusts to his new surroundings, then you can slowly transition him over to a food of your choice for puppies. Switching foods when you first bring him home can cause him tummy issues with all these new changes in his wee lil life.

I like the wellness

I have a 15 week Yorkie who weighs 2.3 kg ( 5 lbs). I thought she was not eating well until I read this thread...I suspect I have been overfeeding her:

A bowl of cooked mince/rice/beetroot/vegetables available (sweet potato, carrot etc) in the morning at 7 am, maybe 300gms of food.

4 tablespoons of kibble in the evening at 7pm.

She barely finishes either meal, but I think its too much for her!

You can never over feed a puppy. Puppies are high energy babies, they burn a lot of calories. It is suggested to fee feed puppies meaning, leave a bowl of dry kibble down all day so that can eat when they are hungry. If this is a tiny baby their stomachs cannot hold a lot of food at one time so free feeding allows them to eat what they can when they are hungry. There are no calories in rice, why are you feeding rice to a puppy.

I give her rice because the breeder told me to. What should I replace it with?

More information is needed on your puppy. She is 15 weeks old now, how old was she when you got her from the breeder.
Reason I ask is, if you got this baby when she was 12 weeks old it is best to keep her on the same food she was eating while she was with her mother. When puppies go home with new owner they are going through many changes, leaving the mother and litter mates, the only human they have known, going to a new home with a stranger they do not know, new smells, sounds, schedules, major changers for a wee lil baby to adjust to, so it is always advised to keep them on the same food the breeder was giving them until the puppy has settled in which is appox. several weeks. Then you can do a slow transition to a food of your choice.

As I have already written, fee feeding is suggested for puppies. If you are doing a schedule I would feed 3 times a day not 2 as you are doing.
I don't know why your breeder was feeding her all veggies for morning meal, puppies need a lot of calories because this breed is a high energy dog, they burn a lot of calories and need calories to replace what they have burned.

Did you tell your vet what food you are feeding this baby.

This is not a balanced diet and will cause very bad health issues. She needs to be on puppy food only.