Beat butter and sugars at medium speed with an electric mixer until fluffy; gradually add eggs and vanilla, beating well.
Combine flour, baking soda, and salt; add to butter mixture, beating at low speed until blended. Stir in pecans and chocolate morsels.
Drop by heaping tablespoonfuls onto lightly greased baking sheets.
Bake at 350° for 8 to 10 minutes or until golden; remove to wire racks to cool.