Start by adding the garlic, parsley, mint, toasted almonds, lemon zest, and lemon juice to a food processor or high-powered blender. Blitz until roughly combined.
Add the parmesan, a generous pinch of salt and pepper, and half the olive oil. Blend again until smooth, then gradually add more olive oil while blending, until you reach your preferred texture, smooth and spreadable, but not runny.
Taste and adjust seasoning with more salt, pepper, or lemon juice if needed.
Spoon into a jar or bowl and top with a little extra olive oil to keep it fresh. Use immediately or store in the fridge for up to a week.