There is not a need to feed a rabbit pellets if you supplement the vitamins that they are not getting from the pellets with extra vegetables. I know you’re out of pellets and doing a pellet free diet may sound good, I would talk to your vet before doing anything.

Is there any way you can get pellets? I say in the mean time just feed him some extra greens. To and up for the lack of vitamins that your bun is not getting through the pellets.

Are you feeding veggies?

Please check out the diet section of this website: https://binkybunny.com/BUNNYINFO/tabid/53/CategoryID/2/PID/940/Default.aspx

Generally speaking bunnies should be eating daily:
1/4 – 1/2 cup pellets per 6lbs
Unlimited Hay
1-2 cups veggies per 6lbs

I don’t think your bunny is going to starve before tomorrow evening but I do think it’s really important for you to look into expanding her daily diet. Bunnies that don’t get pellets generally need a wider variety of veggies to stay healthy.

I’m more concerned about the lack of any greens in your daily diet. More than the pellets, which are like a supplement to her food not a staple, you need to have fresh veggies twice a day. Do NOT feed iceberg lettuce – it’s not good because it’s all water and no nutrition. But a big head of romaine lettuce that will last about a week can give your bunny the nutrition needed along with the hay. Also, please check out the list of many, many other fresh veggies she can have by going to that link.
Your bunny will be OK without pellets until tomorrow (today?). Try a carrot, or carrot tops, green leaf lettuce, even the non-seed part of cucumbers if you have any in your house today. Of course, a small carrot will be good too. An apple slice of a couple of 1/4 inch banana slices are treats, but filling. You want her to have fresh food with the hay. Don’t forget to keep that water dish clean and full all the time, too.

It’s time to find a workable regimen around your job. Trust me, I’ve been there.