Can I use frozen tortellini instead of fresh?
Yes. Cook frozen tortellini according to package directions (usually 3-4 minutes longer than fresh). The sauce preparation remains the same.
What's the best substitute for Boursin cheese?
Cream cheese mixed with minced garlic, Italian seasoning, and grated Parmesan (about 1:1 ratio). Or use a flavored cream cheese like garlic and herb varieties.
Can I make this dairy-free?
Use dairy-free cream cheese or cashew cream instead of Boursin, and substitute heavy cream with oat or coconut cream. The sauce will be slightly less rich.
How do I prevent the sauce from breaking?
Keep heat at medium, add stock first to cool the pan slightly, then stir in Boursin and cream off-heat. Never let the sauce boil vigorously once cream is added.
Can I prepare this ahead?
Prepare the mushroom-shallot mixture up to 2 hours ahead. Cook tortellini and spinach fresh, then combine with the reheated sauce just before serving.