Pecans
Pecans is a vegetable ingredient used for flavor, color, or body. Cut size controls how fast it cooks, while surface dryness helps when browning matters.
Identity
Vegetable
Cut size controls cooking speed.
Small cuts soften quickly and spread flavor through a dish. Larger pieces keep more bite and shape. Dry the surface when browning matters, then season after tasting.
Wikimedia Commons
Reference image
Pecans reference image.

Source: Wikimedia Commons
Used In Recipes
Substitutions
Acceptable
Walnuts -> Pecans
Totally optional: 1/2 cup mix-ins like chopped walnuts or pecans, chocolate chips, raisins, chopped dried fruit, fresh banana slices…
The source lists this as an alternative in the same ingredient row.
Source: Healthy Banana Bread!