This is a variation on my favorite blueberry muffin recipe. It's a delicious healthy take on carrot cake - lots of fiber from the whole wheat flour and rolled oats, and you can use less sugar because the pineapple, raisins and shredded coconut add sweetness. I've also reduced the oil, since the crushed pineapple makes the muffins nice and moist. For an extra treat, top with cream cheese frosting. I love to make extra on weekends and freeze the extras for later.