Is this a good way to make my daughter not vegan?

That's bang out of order on your part. If your daughter was diabetic or had coeliac disease would you sneak in sugary or wheat based foods just to get her to eat a "normal" diet? No you wouldn't. So stop being a douchebag and stop sneaking in foods she doesn't want to eat. 

make sure she is getting all the nutrition she needs without eating meat dairy etc as you are the cook and food shopper. If she finds out she may get very angry.

You would really be that sneaky with your child? That frikkin' hateful? You really know how to put the fun in disfunctional. I really hope you are trolling otherwise you win the 'World's Worst Parent' award hands down.

You have a good way to show her how sneaky you are anyway! Is that an example of being a great model for her?

You don't really come across as very credible, Karen, if you ask this question in this section. One rather assumes that genuine people here have a serious interest in the topic of living meat free - many, if not all, wishing to benefit the planet for future generations, rearing animals for the luxury of eating them being the single most damaging activity for Earth, the scientists tell us. 

Do you hear any other rumours from your friend Veronika about her son? How could that be a rumour if it is from the horse's mouth? It's all rather confusing.

It's a good way to make your child hate you for disrespecting something important to her. She can get everything she needs from a vegan diet (look up vegan Iron Man if you don't believe me), it just takes a supportive family to help her. Imagine how you'd feel if someone tried to 'sneak' something into your food because they thought you should have it.

No, It's not the best way. Pile her plate with veggies and grains. She needs to eat a lot of them to get the calories she needs. Don't let her snack between meals on junk (chips, etc). Watch her weight to be sure she's not losing too much weight. Don't buy fake meat for her. It's ok if she uses her own money to buy it though.

Otherwise ignore the whole thing.

Research shows most people give up veganism. If you continue to push her, she'll be more reluctant to quit. 

Why not just slip a B12 vitamin supplement suppository up her bum while she's sleeping?

That'd be simpler.

A better idea is if she refuses to follow your rules and eat meals with the family (including eating meat), there's always the option of military boot camp. Back when I was a kid, in the 1990s, that was what they did as a last resort. With rebellious kids, if spanking them or grounding them doesn't work, send them to boot camp. I'm a grown man (single bachelor), but if I was married and had kids, I would not tolerate the shenanigans of kids going vegan against my wishes. If you have a husband, let him decide. He's supposed to be the leader in the home. 

Anyways, the veganism agenda (as propagated by PETA and other similar groups who forbid people to eat meat) is against my worldview. Matter of fact, militant veganism is satanic. If I was that girl's father, I would not let her go vegetarian or vegan in my house, under any circumstances. It doesn't matter to me if she had spending money, knows how to cook, and is responsible otherwise. It would be "my house, my rules - because I said so". Make her eat meat. Make her follow the rules. Discipline her. Discipline is not abuse. At the same time, don't become abusive. If all else fails, the US Army and/or the US Marine Corps will put her back in line. Kids don't have discipline these days. And they're out of control, as a result. I'm a 35 year old man. When I was growing up, I didn't get away with much. I got in trouble quite a bit, even for some things that were not my fault. It didn't matter. When I got in trouble, I got a whopping with a belt. And I've been grounded quite a few times in my teenage years. And the times when I really did do something wrong, and not a scapegoat for someone else, I deserved it.

Part of the fault is the liberal politicians, who want to falsely accuse parents of abuse for disciplining their kids. Actual abuse is crossing the line. Tough parenting is not abuse. If you think my parents were strict, that ain't nothing compared to when they were growing up (50s and 60s). Corporal punishment was the norm, when my parents were kids. Even in school. When I was a kid, corporal punishment was still around - but coming to an end.

Anyways, if you are the parent, be the parent. Your kids are supposed to submit to yours and dads authority. If veganism is not allowed in your house, then lay down the law, and make sure there are consequences when she disobeys you. End of story.

You are contemplating betraying your daughter's trust so she will eat what you eat? Please be honest and straight forward with her in this situation. Vegan food tastes kind of crappy (at least what I have eaten of it) so honor her wishes and make sure she gets enough protein. My granddaughter did a year of pescatarian/vegan and gave it up. BTW, if she's old enough, let her cook her own meals.

She's young and attempting to express her individuality as well as making a statement against the treatment of feed animals. Your response is to lie to her, not support her decision and instead manipulate her to accept your choice and not her own.  

Which person in that scenario is the better role model? She is and you come off as a chauvinistic, manipulative, lying and selfish human being not fit for parenting. To be clear, not eating meat is NOT misbehaving. She would rather support a less cruel world and you are doing your all to suplant that which is so very ugly, even for a fantasizing troll that you are. I'll give you a 4 out of 10 on the internet trolling scale. I'll give you a POS on the human scale.