Hi Emma9383,
I always give mine half fruit, half veg mixes with no complaint (so far) and bowls licked clean. My girls love tiny bits of cucumber without the skin as a treat too.
Here are some veggies I've tried with ratios:
spinach 2.0:1
green beans 1.0:1
sugar snap peas 0.8:1
sweet potato 0.8:1
broccoli 0.7:1
carrot 0.6:1
pumpkin 0.47:1
I had a print out of ratios from here which the previous owner gave me which is where these figures came from.
My husband has banned me from giving honeydew melon after I went out one night and he had the girls out. Let's just say he had rivermud puddles all over the back of his white t shirt
