Preheat the Oven: Preheat your oven to 350°F (175°C).
Prepare the Spinach: Squeeze out all the excess moisture from the thawed spinach and set aside.
Warm Garlic and Lemon: In a small skillet, heat 1 tablespoon of olive oil over medium heat. Add the roasted garlic and lemon wedges. Cook gently until the garlic is soft and the lemon is breaking down into very soft pieces, about 8 minutes.
Mix Cheeses and Ingredients: Combine the sour cream and cream cheese in a medium bowl. Mix until smooth. Add the smoked paprika, spinach, mozzarella, and gouda. Stir well to ensure the paprika is fully incorporated. Fold in the roasted garlic and softened lemon pieces.
Assemble the Dip: Transfer the mixture to an ovenproof dish. Top with the remaining mozzarella, gouda, lemon slices, and fresh thyme sprigs.
Bake: Bake in the preheated oven until the cheese topping is golden and the dip is hot and bubbly, about 20 minutes.
Serve: Serve hot with bread, tortilla chips, or crackers.