Cook ravioli in large (4-qt.) saucepan as directed on package. Drain in colander; set aside.
Heat dressing in same pan on medium-high heat. Add garlic; cook 1 minute Add roasted red peppers, tomatoes and shrimp; mix well. Bring just to boil. Stir in spinach; cover. Simmer 1 to 2 minute or until spinach is wilted, stirring occasionally.
Stir in ravioli and basil; simmer, uncovered, 3 to 4 minute or until sauce is thickened, stirring occasionally.