Instructions
- Melt butter and saute the mushrooms.
- Add flour and the next several ingredients (broth, sherry, seasonings), stirring until smooth and thickened.
- Combine the sauce with the cooked chicken and spaghetti.
- Pour into a casserole dish, top with cheddar and Parmesan cheese and slivered almonds, and bake at 350° until bubbly and golden.
This recipe spans two cards (a front card that continues onto a second card) and some of Sally's own quantities are not fully specified - written more as a personal shorthand than a precise recipe; filled in with standard tetrazzini technique where the card just says "and next four ingredients."