At 2 posts per week (2 full time days of shooting + editing + writing) you can do 100 posts per year.
The key to writing a high quality post is understanding keyword research - the cooking with keywords course will give you a good foundation.
On top of that your photography has to be on-point, with full process shots and images that make people want to click. The Bite Shot is a good launching point for that.
Writing quality content involves thoroughly answering reader questions and providing instructions that the reader can use to make the recipe. We have the Recipe Post Template to use as a template for this.
If you're just getting started, we recommend signing up for the Feast Plugin Starter plan to access the Recipe Post Template.
You need roughly 150 high quality posts and 150 quality backlinks to hit the 50,000 sessions/month threshold for Mediavine.
50,000 monthly sessions @ $20 CPM (per thousand impressions) = $1,000/month
Realistically, if you do everything very well you can expect to be making ~$1,000/month in 18 months. Realistically, less than 25% of new sites pull this off.
By about 36 months (3 years) you should be able to be making $5000/month+
Note that this is for U.S. based traffic and keywords. Other countries pay far far less for ad revenue and aren't worth targeting.
Those are all based on current market conditions. In 3-5 years, video is likely to be a requirement to be competitive, which means that any post done without video will have to be redone.
A viable alternative might be providing photography for other bloggers. A full set of (very) high quality photos can go for ~$200 USD which means those 8 posts you're doing would pay ~$1600/month, starting as soon as you can build a portfolio.