Easy Fruit Smoothies

Isaac brought home a healthy cookbook from school and we've tried out some of the recipes. This is one that is easy and yummy. I also like it because within a few minutes I've added a few additional fruit servings into my kids daily intake. Most days I have all of the ingredients on hand, so I can whip it up in just a few minutes. I ususally don't measure the ingredients too closely either. Makes about 2-3 servings. Just toss it in the blender and blend!

8 oz can of pineapple juice
handful of strawberries
1 ripe banana
1/2-ish cup of vanilla yogurt