Combine the rice and water in a medium-sized saucepan. Bring to a boil, cover, and reduce heat to low. Let simmer for 40 minutes and then take off the heat and let the rice sit for 10 minutes.
While the rice is cooking, prepare the veggies and preheat the oven to 425 degrees Fahrenheit.
Add all the veggies to a large baking sheet* and drizzle with olive oil. Mix with your hands until all the vegetables are lightly coated. Sprinkle with the salt and pepper and mix again. Bake for 15 to 25 minutes (it depends on how crowded the baking sheet is) or until the bottom of the broccolini stalks are tender and the tops are slightly crispy.
While the rice and veggies are cooking, pulse the frozen peas in a food processor until they are coarsely chopped. Pour into a bowl and set aside.
After you’ve pulsed the peas, make the green sauce in the food processor.
Once the rice is done, toss in the pulsed peas and mix with the rice, adding salt and pepper to taste. Place the rice in a serving platter or bowl and add the roasted veggies. Toss. Serve with a side of the green sauce.