Boosted Boxed Blueberry Muffins
Combine packaged muffin mix plus the ingredients it calls for (mine called for water, oil, and 2 eggs) plus the additional boosts: ground flax, lemon juice, and lemon zest.
Spray a muffin tin or use paper liners. Scoop batter so that cups are 2/3rds full.
Bake according to package.