Final answer:
Outback Steakhouse, known for its Australian theme, was founded in Tampa and is owned by Bloomin' Brands.
Step-by-step explanation:
The chain restaurant that was founded in Tampa and is now owned by Bloomin' Brands is Outback Steakhouse. Despite its rugged Australian theme, this restaurant is well-known for its casual dining experience and offers a variety of dishes, primarily steaks and other Australian-themed food. Bloomin' Brands, also based in Tampa, Florida, is a hospitality industry company that owns several American casual dining restaurant chains.