Heat oil in a large skillet over medium-high. Add turmeric; cook 1 minute, stirring constantly. Add bell pepper, peas, and garlic to pan; cook 2 minutes, stirring occasionally. Stir in rice; spread in an even layer. Cook, without stirring, 3 minutes. Reduce heat to medium. Stir in stock, salt, and pepper. Spread rice mixture in an even layer in pan. Cook, without stirring, 7 minutes. Arrange shrimp on top of rice mixture; cover and cook 3 to 4 minutes or until shrimp are done. Drizzle lemon juice over pan. Serve immediately.