⭐ Sour Cream (Best Gluten-Free Option)
1:1 (1/4 cup sour cream per 1/4 cup Greek yogurt)Sour cream has a comparable fat content and acidity level to Greek yogurt, which helps replicate the creamy texture and subtle tang that complement roasted vegetables. The lactic acid in sour cream aids in brightening the dish, similar to Greek yogurt.
When substituting, use full-fat sour cream for the closest match in texture and flavor. Avoid low-fat versions as they can be too watery and less flavorful. Stir well before adding to ensure smoothness.
The final dish will have a slightly richer mouthfeel but will retain the desired tangy creaminess, making sour cream the closest alternative to Greek yogurt in this context.