To make the jam, place bacon and oil in a non-stick frypan over medium low heat. Cook, stirring occasionally, for 8-10 minutes until fat has rendered. Add coriander seeds and stir for 2 minutes or until fragrant. Stir in beetroot, caster sugar, vinegar and apple and bring to a simmer. Cook for 20-25 minutes, stirring occasionally until thick and jammy. Season, then set aside to cool completely.
Place goat's cheese and cream in a bowl and whisk until a smooth, spreadable consistency. Divide a heaped teaspoon of goat's cheese mixture among tart shells and top with beetroot and bacon jam. Scatter with herbs to serve.