cook today to reheat or prepare and cook tomorrow

having my Dad's 80th birthday tomorroow and i am doing chicken cacciatore in the slow cooker. But I am going out tonight so have limited time.
So I have chopped up all the veg and am wondering whether I can brown the chicken and vegetables and throw everthing in slow cooker to sit in fridge overnight and then cook in the morning. I am guessing that is a no no as the chicken is effectively still raw?
I was not confident in making it today and reheating tomorrow as I thought the veges might fall apart. Or I guess I just get up early tomorrow to brown everything and start it. It supposedly only needs 2 hours on low but I am making extra so I should allow 3 hours.
what works best?

You can do that but probably not a good idea to brown the chicken until you're actually going to turn the slow cooker on.

The cooking time would depend on the size of the pieces. I'd probably add the hour.

Why not chop up everything so it's ready to go and brown the chicken in the morning?

Don't half cook chicken and let it sit there overnight!!!!

thanks ladies. prepared everything and browned chicken this morning and now it is cooking.

How'd the celebration go?

Went well thanks. Got some compliments on the chicken and enough left for tomorrow night. But still feeling full from lunch!