Yes baked beans on toast is a healthy meal to eat.
The baked beans are good for your heart health and may prevent heart disease, heart attacks, strokes etc.
Beans including baked beans are good for you and they do go well with toast.
The toasted bread is also healthy for you and is much healthier than other foods such as bacon, hamburger, sausage etc.
My husband loves to eat baked beans on toast nearly every morning for breakfast and he's very healthy and has been eating baked beans on toast for most of his life.