Cook the conchiglie in boiling salty water.
Drain al dente and cool in ice water for a few minutes.
Fill with salted ricotta and pepper.
In a saucepan with a tablespoon of oil, sauté the pancetta cut into fine strips.
Add the tomato pulp, young peas, and wild fennel.
Add salt and pepper, then cook over low heat for about 10 minutes, stirring occasionally.
Add the conchiglie to the saucepan, letting them flavor for one or two minutes.
Arrange on individual plates, sprinkle with pecorino, and drizzle with some remaining oil. Serve immediately.