Put oil into a large frying pan. Place on medium heat.
Once oil is hot, put in garlic pieces. Once the garlic pieces start to sizzle, place in the shrimp-and-bacon mixture. Next, add in the mushroom and onion slices too.
Stir everything until the shrimp get plump and the bacon develops a slight crisp on the edges. Then pour in that heavy cream (1.5 cup). As well as the milk (1.25 cups).
Now raise the heat to a medium-high heat. Once the sauce starts to boil, place in the broccoli pieces.
Allow the mixture to reduce for approx. 15 minutes on medium-high heat. Stir occasionally.
Meanwhile, you should cook your pasta according to box instructions. (Note: Cook the noodles adente, so it can finish cooking in our sauce).
After 15 minutes, the sauce will have thickened (reference video). Take a quick taste and add-in some salt (few shakes). (Don't forget this step to season)
Finally, add your cooked pasta into the sauce. Stir around and coat evenly. Plate the noodles and garnish with a few sprinkles of green onion.
Bon Appetit! Enjoy life :)