In a mixing bowl, combine the shrimp with cornstarch and a pinch of salt. Toss to coat the shrimp evenly. Set aside.
In a wok or large skillet, heat the vegetable oil over medium-high heat. Add the minced garlic and sauté for about 30 seconds until fragrant.
Add the shrimp to the pan and cook for 2-3 minutes, stirring frequently, until they turn pink and opaque. Remove the shrimp from the pan and set aside.
In the same pan, add the chicken broth, lobster paste, and soy sauce. Stir well and bring to a simmer.
Once the sauce is simmering, add the diced bell pepper, green onions, and pea pods. Cook for 3-4 minutes until the vegetables are tender-crisp.
Return the cooked shrimp to the pan and stir to coat them in the sauce. Cook for an additional 2-3 minutes to ensure everything is heated through.
Adjust the seasoning with salt and pepper to taste. If you like a thicker sauce, you can mix a little more cornstarch with water and stir it in at this stage.
Serve hot over rice or noodles on individual plates.