Step 1

In a 10-inch skillet or 3-quart saucier, heat oil over medium heat until shimmering. Add shishitos, shallots, and garlic, season with salt and pepper, and cook, stirring frequently with a rubber spatula, until vegetables are softened but not browned and shishitos are still bright green, 5 to 7 minutes.

Step 2

Add heavy cream, season lightly with salt, and bring to a rapid simmer. Continue to cook, adjusting heat as necessary to maintain a rapid simmer, stirring frequently to keep vegetables from sticking and cream from scorching on the sides of the pan, until cream is reduced to a saucy consistency, 5 to 7 minutes.

Step 3

Remove from heat, add grated cheese and nutmeg, and season with salt and pepper to taste. Serve right away, or cool and refrigerate in an airtight container for future use.