Cook the frozen shrimps in salted water for about 2 minutes. Drain, quench and let drain. Peel onion and chop finely. Peel the mango, cut the flesh off the stone and dice. Wash the lime hot, dry it, grate the peel thinly, halve the fruit and squeeze it. Clean the chilli, cut lengthwise, remove seeds, wash and cut into fine rings. Cut shrimps into slices. Mix with onion, half mango, lime peel and half chili. Season with salt and some lime juice.
Wash and dice the tomatoes. Clean and wash spring onions and cut into rings. Mix both with remaining mango and chilli. Season with salt, lime juice and 1 tsp. sugar.
Cut the avocados in half lengthwise, remove the seeds and fill 4 halves each with the two prepared salads. Baguette tastes good with it.