1. Heat oil in a large saute pan over medium heat until hot but not smoking. Add garlic; cook, stirring, until just starting to brown, 1 to 2 minutes. Add curry paste; cook, stirring, until fragrant, about 1 minute. Add the green beans and zucchini; cook, stirring, until starting to soften, about 5 minutes.

2. Stir in stock, coconut milk, and lime leaves. Bring to a simmer; cook, stirring occasionally, until liquid is slightly thickened, about 6 minutes. Stir in fish sauce, sugar, and lime juice. Simmer 1 minute.

3. Stir in the tofu, and reduce heat to medium-low. Cover, and cook until vegetables are tender and tofu is heated through, about 4 minutes. Serve immediately over rice, garnished with basil, bean sprouts, and lime wedges.