Waltham School District hosts taste tests for K-5 students as part of its Fearless Foodies Nutrition Program. To promote Fearless Foodies and foster healthy eating habits, the children are treated to healthy snacks during school breakfast or lunch, says Foodservice Director April Liles, and Fearless Banana Pops are a top pick. Execution is easy: Halved bananas are brushed with lemon juice to prevent browning, rolled in yogurt and granola, then frozen for 30 minutes. Other student-approved snacks the program serves are Energy Bites and Berry Boats and Fruit.