3 cups long grain white rice 7 cups water, divided ¾ cup butter 1 large onion, chopped 1 clove garlic, chopped ¼ cup all-purpose flour 2 tablespoons canned tomato sauce 1 pound crawfish tails 6 green onions, chopped salt and pepper to taste 1 ½ tablespoons Cajun seasoning, or to taste Combine rice and 6 cups water in a saucepan. Bring to a boil over high heat. Reduce heat to low, cover the pan,…