Since the last ten years, wireless sensor networks attract considerable research interests. The limited energy of sensors, the embedded constraints and the communication re- strictions make WSN a very challenging system. Every protocols and applications should be energy efficient. Many efforts have been done to propose energy-efficient protocols in WSN through activity scheduling, sleeping mode in MAC protocols, energy- aware routing protocol, temporal and spatial data aggregation schemes at the application layer. However both control packets and beacons remain which induces a huge waste energy. Beacon- less geo-routing protocols are a piece of work to improve considerably the sensor lifetime but classical approaches do not work under realistic radio assumptions due to the planarization strategies. In this paper, we present a new beaconless routing protocol called Pizza-Forwarding without any assumption on the radio environment: neither the radio range nor symmetric radio links nor radio properties (shadowing, etc.) are assumed or restricted. A classical greedy mode is proposed. To overcome the hole problem, packets are forwarded to an optimal node in the two hop neighbor following a reactive and optimized neighborhood discovery. Simulation results are proposed to highlight the delivery ratio and the energy consumption.