How do I keep this brief? I could have a long conversation about this, at my advanced age.
From my life experience, I do feel that you need to choose a profession and follow through until you achieve it, instead of waiting to "find your passion" or "find out who you are," etc.
I also believe that to a certain extent, people don't need to adore their jobs, and can find their passion outside of work.
HOWEVER, you should NOT take a job you hate. You should not spend a lot of time and money going to school to take a job you know in advance you don't want to do. Nursing is about caring for other people, and if you know you won't like that, then you definitely should not do it.
Lots of people love their jobs. Lots of people hate them, and that's no way to live. Indifference is one thing, but dislike and hate is not a good way to live.
One friend of mine just took a well-paying but relatively menial job with a 10 year plan of doing the job, and getting vested in retirement, but after just a few months she's bored out of her mind and wants to quit already. And she will probably quit within a few months. Fortunately, she didn't have years of expensive training to get this job.
You are still young at 27, so my advice is no, don't "suck it up" and waste your time getting a job you will be unhappy at and therefore probably be a mediocre nurse. I don't know what to tell your husband about that.
As far as owning a restaurant goes -- It's true, the statistics are that something like 90% of them fail relatively quickly. So it's not something you can go into lightly unless you have cash to fall back on.
How about working in the restaurant industry, for starters? I personally hate the idea of owning a restaurant, and hate the idea of working in a career related to food, so I can tell you that you have a distinctive passion, and so your job should be in a related field.
You only have one semester under your belt, so before you waste money and time on semester #2, I think you should research the food industry, and pursue an education that will get you a job in that field.
Don't worry about your daughter right now -- you can get her to go to college without immersing yourself in a job you hate.