Drain tofu.
If you are not using leftover biscuits, get them started now. Start the gravy when you put the biscuits in the oven.
Heat a large non-stick pan on medium-high heat and add 2 Tbsp oil.
Use your hands to crumble the tofu onto the pan and sauté for 5 minutes, making sure the tofu is very well coated in the oil.
Add the garlic and onion. Sauté for 7 minutes until the onion is translucent.
Turn the heat to medium-low and stir in 2 Tbsp of the flour, making sure it fully coats the other ingredients. Cook for 2 minutes.
Slowly whisk in the vegetable broth, 1/2 cup at a time.
Cook on medium-low heat for 5 minutes.
Check consistency. If the gravy is too thin, whisk in the extra Tbsp of flour. If gravy is too thick, whisk in another 1/4 or so of vegetable broth.
Taste and adjust seasonings accordingly.
Serve over the pesto potato biscuits and enjoy!