Place broth, water, and garlic in a large skillet or pan. Bring to a boil and add pasta, cook until pasta is just done, not aldente but not completely cooked. 12-15 minutes, make sure all liquid is absorbed.
While the pasta is cooking mix your sauce ingredients together in a sauce pan and let simmer. The sauce will thicken do not let it get too thick if it does add a little water to thin it.
Chop vegetables in bite size pieces and set aside. If your shrimp is frozen make sure it is thawed out. When pasta is cooked add the vegetables, pineapple and shrimp to the pasta stir to mix. Cover and let steam about 7- 10 minutes until shrimp turns pink.
When all the shrimp has turned pink drizzle your sauce over pasta and vegetables, toss to coat all pasta, vegetables and shrimp. Heat for about 3-5 minutes and serve with sliced green onions.