Ingredients
- 1 1/2 cups dried cannellini (white kidney) beans, soaked overnight, drained
- 1 head of garlic, halved crosswise; plus 2 garlic cloves, crushed
- 3 sage leaves
- 6 tablespoons olive oil, divided, plus more for serving
- Kosher salt
- 1/2 teaspoon crushed red pepper flakes
- 2 bunches mature spinach, trimmed
- 1 tablespoon finely grated lemon zest
- 2 tablespoons fresh lemon juice
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