Greek Yogurt (Best Option)
1:1 (1 cup Greek yogurt per 1 cup cream cheese)Greek yogurt works well because it has a thick, creamy consistency similar to cream cheese and a mild tanginess that enhances the flavor profile of zucchini bread. The protein content helps maintain structure while the moisture content is balanced enough to avoid sogginess.
To ensure success, strain the Greek yogurt if it is too watery to prevent excess moisture in the batter. Use full-fat varieties to replicate the richness of cream cheese and avoid thinning the batter.
Compared to cream cheese, Greek yogurt results in a slightly lighter crumb with a subtle tang, but the overall texture and moisture balance remain very close to the original, making it the best substitute.