This spinach and feta dip is the perfect appetizer or snack for any occasion. It's easy to make, flavorful, and packed with nutrients. The recipe includes caramelized onions, garlic, and frozen spinach, which are all combined with crumbled feta cheese and a squeeze of lemon juice for added flavor. You can serve this dip chilled or at room temperature with vegetables, low-carb chips, or top off roast chicken or salmon with a dollop of dip.