1. Melt the margarine in a saucepan; add the mushrooms, garlic powder, & onion powder.
2. Saute 5-6 minutes.
3. Whisk the milk and flour in a small bowl, whisking quickly to eliminate any lumps.
4. Pour the milk mixture into the mushroom mixture; mix thoroughly, and continue cooking 3-4 minutes.
5. Add the lobster, paprika, and salt & pepper to taste.
6. Continue cooking 5-10 minutes until lobster is heated through.
7. Spread rice or pasta onto a serving platter.
8. Spoon lobster and sauce over the top.
9. Garnish with parsley & then serve.