I'm one of those who eat everything and anything (and it shows!), incl peanuts (I love salted peanuts - gotta get my salt fix!), corn, mushrooms, tomatoes, raw stuff, etc. Just CHEW, CHEW, CHEW! Yes, I often see these (and more) come out looking just like they did before I ate them (I swear corn, no matter how much I chew it, regroups in my tummy and comes out looking whole again!), but that doesn't stop me from eating them.
Introduce new foods into your diet, one thing at a time. That way, if it does cause problems, you can identify the culprit and either limit it or totally eliminate it from your diet.
I often think that those of us who have had our ostomies for many many years are lucky in that 20+ years ago (for the most part) we were never handed pages of foods to avoid, etc and have just gone on to eat whatever we want without a problem (ie we were never told not to and, for the vast majority, it hasn't harmed us). Nowadays, I find a lot of newer ostomates are very cautious in what they eat and a lot are scared to add new foods to their diet simply because of something that MIGHT happen. I have met so many who religiously stick to the diet they were given in hospital and don't realise that it's a diet for them mainly while they're healing. They're missing out on so many foods they love because they're too afraid to try anything new.
Remember, only about 10% of blockages are caused by food. The other 90% are caused by adhesions. Most ostomates will never experience a blockage at all.