Just try and keep trying. Some of my kids favorites (some days...)
Artichokes - steamed w/ butter for dipping
Asparagus - with butter for dipping
Broccoli - we call them "little trees"
Sweet potato "french fries" - just peel, cut and bake (ketchup/ranch dip)
Avocado - sliced - or on sushi (YES they love eel rolls at 3 and 5) - who would have thought?
Guacamole - with chips to dip
Carrots (cooked) and ranch (mine aren't too into raw either)
I let them eat them with their hands - but at least they eat them. They enjoy dipping too. Just keep trying and give them what you eat - you might just be suprised!