In a saucepan, bring the stock to a gentle simmer over medium heat. Keep it warm throughout the cooking process.
In a large skillet, heat the olive oil and 1 tablespoon of butter over medium heat. Add the chopped onion and garlic, cooking until soft and translucent, about 5 minutes.
Add the Arborio rice to the skillet, stirring continuously for about 2 minutes until the rice is lightly toasted.
Pour in the white wine and stir until it is fully absorbed by the rice.
Begin adding the warm stock, one ladleful at a time, stirring frequently. Allow the liquid to be absorbed before adding more stock. Continue this process until the rice is creamy and al dente, about 18-20 minutes.
Once the rice is cooked, gently fold in the chopped lobster meat, grated Parmesan cheese, remaining butter, and season with salt and pepper to taste. Stir until well combined.
Remove from heat and let the risotto rest for a couple of minutes before serving.
Serve hot, garnished with chopped parsley if desired.