There are very slight differences in taste or texture in different brands. These may be very subtle, or very noticeable to a specific child. Introduce different types of food that the child accepts. Yellow cheese could be Mild Cheddar, Medium Cheddar, Sharp Cheddar, Colby, or Longhorn. White cheese could be Swiss, Gruyere, or Mozzarella.
Apples come in sweet, tart, firm, and soft variations.
Applesauce comes in sweetened, unsweetened and cinnamon applesauce. Pretzels can be long and thin, short and fat, or round. Make bridges toward totally new foods based on taste, texture, and color. For example, a yellow apple and a yellow pear have many similarities but a few important differences in taste and texture. A child who eats apples may have an easier time moving to pears than to strawberries.