Lamb: Season lamb with rosemary, salt, and pepper. Sear in olive oil for 3–4 mins per side. Remove. Simmer balsamic, honey, and garlic in the same pan until thickened.
Broccolini: Toss with oil and garlic. Roast at 425°F for 12–15 mins. Top with lemon juice.
Pasta: Boil fettuccine until al dente. Reserve pasta water.
Shrimp & Sauce: Sauté shrimp in 1 tbsp butter (2 mins per side); remove. Melt remaining butter, add garlic, then cream. Whisk in Parmesan and seasonings.
Combine: Toss pasta and shrimp in sauce. Serve with lamb and broccolini.