Saute' onion in olive oil until soft. Add mushrooms and continue sauteing until lightly browned. Add spinach and stir until just wilted. Remove from heat.
Preheat oven to 450°F. If you have a pizza stone, heat the stone.
I sprinkle corn meal on parchment paper and then slide the parchment onto the stone because I don't have a pizza peel.
Stretch dough and roll into 10-12" round.
Place on parchment paper.
Cover with a kitchen towel and let dough rest for about 5 minutes.
Spread mushrooms and spinach evenly across dough.
Top with lobster and then the cheeses.
Bake for 18-20 minutes until golden and bubbly