Preheat oven to 425 degrees F. Place Yummy Dino Buddies chicken nuggets on a baking sheet in a single layer. Bake for 10-12 minutes, turning once 6 minutes into cooking. Remove from oven.
While chicken nuggets cook, rinse lettuce and tomatoes. Cut lettuce head into quarters and shred lettuce. Cut off the tomato ends and dice. Place lettuce, tomatoes, and cheese into bowls for serving.
In a medium bowl, stir together mayo, sour cream, lime juice, and chili powder until smooth and evenly combined. (Add more chili powder of lime juice to taste, if desired.) *You can transfer the sauce to a squeeze bottle or use a spoon to top your tacos.
On a tortilla, place 2 Yummy Dino Buddies chicken nuggets. Add desired toppings, however much you like. Top with a dollop (or squirt) of crema sauce. Repeat with remaining ingredients. Serve immediately or pack in a lunch box for later.