1.Pat lentils dry with paper towel. Heat oil in a large frying pan over medium-high heat. Cook garlic and chilli for 30 seconds; add lentils. Cook, stirring, for 15 minutes or until lentils are crisp. Season to taste. Remove from pan, drain on paper towel.
2.Remove strips of rind from lemon using a zesting tool; place in a bowl of cold water.
3.Place half the asparagus in a steamer, bamboo steamer or round wire rack over a wok or wide pan containing about 2cm water. Steam asparagus, covered, for 1 minute; transfer to a plate. Season. Repeat with remaining asparagus.
4.Pulse half the yoghurt, the herbs and juice in a small food processor until smooth. Transfer to a small bowl; stir in remaining yoghurt; season to taste.
5.Spoon some of the herb yoghurt on a platter, top with asparagus; sprinkle with crisp lentils. Spoon over more of the herb yoghurt; top with lemon strips. Serve with remaining herb yoghurt.
Herb yoghurt can be made up to a day ahead and refrigerated.
Not suitable to freeze or microwave.Note