Tallywell.

Croissant (butter) vs Bagel (plain)

Both count toward 30 plants a week.

Croissant (butter)Bagel (plain)
Protein · per 100 g8.2 g10.0 g
Fiber · per 100 g2.6 g2.2 g
Energy · per 100 g406 kcal250 kcal
Protein · per 100 kcal2.0 g4.0 g
To hit 30 g protein366 g · 1485 kcal300 g · 750 kcal

Bold marks the better side of each row. "Per 100 kcal" answers the density question — which food delivers more protein for the energy it costs. Portion row is computed live from the same USDA base values shown on each food page.