Vegetable bread

I would like to do vegetable bread, but I am not sure how to adjust the amount of water. Here is a recipe for Spinach Capsicum bread. The amount in parentheses is from the recipe, the amount before parentheses is what I would like to try. I don't have spinach, just finish our green Capsicum, but we have some carrot. Maybe I will use carrot.

water = 270 g (300 g)
oil = 20 g (40 g)
salt = 7 g (9 g)
sugar = 30 g (40 g)
plain flour = 450 g (500 g)
milk powder = 10 g (10 g)
lemon juice = 5 g (no)
yeast = 4-6 g (i.e. 1.5 tsp) (5 g)

add after beep:
spinach (100 g): chop into small piece before use
sweet Capsicum (1): chop into small piece before use

Setting: 1 (basic), light crust color, total 3 hours
1st knead (2 min) -> 2nd knead (28 min) ->1st rise (20 min)
-> punch down (15 sec) -> 2nd rise (20 min) -> punch down (10 sec)
-> 3rd rise (50 min) -> bake (60 min).